From cc15566cd29e5d207c88eeb1e47095cdc8902273 Mon Sep 17 00:00:00 2001 From: Shine wOng <1551885@tongji.edu.cn> Date: Sat, 14 Sep 2019 21:32:45 +0800 Subject: [PATCH] update words.md. --- thu_os/chp11.md | 4 +- words.md | 161 ++++++++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 160 insertions(+), 5 deletions(-) diff --git a/thu_os/chp11.md b/thu_os/chp11.md index b7a45a9..38e7e4b 100644 --- a/thu_os/chp11.md +++ b/thu_os/chp11.md @@ -133,7 +133,7 @@ 关于进程和线程的关系，可以用一句话总结，即进程拥有一个完整的资源平台，而线程只独享指令流执行的必要资源，如寄存器和栈。进程是资源分配单位，线程是CPU调度单位。 -为了实现在实际系统中实现线程，可以有几种方案，即用户线程，内核线程以及轻量级进程。 +为了在实际系统中实现线程，可以有几种方案，即用户线程，内核线程以及轻量级进程。 ### 用户线程 @@ -173,4 +173,6 @@ ![lightweight_proc](images/lightweight_proc.png) +轻量级进程的思路是很好的，但是在实际系统中的运行不太理想，因为轻量级进程实现的开销太高了，在一定程度上抵消了它的优越性。 + 可以看到，在轻量级进程中，用户线程和内核线程是多对多的关系。除此以外，还有用户线程对内核线程是一对一或者多对一的关系的情况，分别对应了内核线程和用户线程。 diff --git a/words.md b/words.md index a2cdca1..a6b6c3e 100644 --- a/words.md +++ b/words.md @@ -484,7 +484,7 @@ Some Words > (adj)shared or made by every member of a group or society.
> (n)A collective is a business or farm which is run, and often owned, by a group of people. - - a collective devision made by all board members. + - a collective decision made by all board members. - our collective responsiblity for the environment + morale @@ -540,14 +540,14 @@ Some Words - "I do not know."And thus ended their discourse. + assimilation -> (n)the process of understanding and using new ideas. -> (n)the process of becoming a accepted part of a country or group. +> (n)the process of understanding and using new ideas.
+> (n)the process of becoming an accepted part of a country or group. - The assimilation of ethnic Germans in the US was accelerated by the two world wars. - Poor assimilation of vitamins and nutrients can cause health problems. + mouthpiece -> (n)the part of a musical instrument, telephone etc that you put in your mouth or next to your mouth. +> (n)the part of a musical instrument, telephone etc that you put in your mouth or next to your mouth.
> (n)a person, newspaper etc that expresses the opinions of a government or a political organization. - He shouted into the mouthpiece. @@ -565,3 +565,156 @@ Some Words - The report ascribes the rise in childhood asthma to the increase in pollution. - a quotation that's often been ascribed to Marilyn Monroe + +## 13th, Sep + ++ upfront +> (adj)behaving or talking in an honest way so that people know what you really think, honest.
+> (adj)paid before any work has been done or before goods are supplied.
+> (adv)in the beginning + + - Mo's very upfront with him about their relationship. + - an upfront fee of 500 dolloars + - Every consumer should know upfront what it is going to cost them. + ++ eligible +> (adj)some who is eligible for sth is able or allowed to do it, for example, because they are the right age.
+> (adj)an eligible man or woman is not yet married and is thought by many people to be a suitable partner. + + - Almost half the population are eligible to vote in today's election. + - Students on a part-time course are not eligible for a loan. + - Stephen was regarded as an eligible bachelor. + ++ treasury +> (n)a government department that controls the money that the country collects and spends.
+> (n)a place in a castle, church, palace etc where money or valuable objects are kept. + + - a senior official at the Treasury + ++ exchequer +> (n)the British government department that is responsible for collecting taxes and paying out public money, the Treasury. + + - The industry claims it contributes to the Irish exchequer because it generates employment and wealth. + ++ chancellor +> (n)a person in a position of the highest or high rank, especially in a government or university + + - A former politician has been appointed Chancellor of the university. + - Helmut Kohl, the former German Chancellor + +## 14th, Sep + ++ roundabout +> (n)a raised circular area where three or more roads join together and which cars must drive around.
+> (adj)a roundabout way of getting somewhere is longer and more complicated than necessary.
+> (adj)a roundabout way of saying something is not clear, direct or simple. + + - Turn left at the first roundabout. + - It was a roundabout way of telling us to leave. + - The bus took a very long and roungabout route. + ++ workout +> (n)a period of physical exercise, especially as training for a sport. + + - a daily workout in the gym + - Give your upper body a workout by using handweights. + ++ genre +> (n)a particular type of art, writing, music etc, which has certain features that all examples of this type share + + - a new genre of film-making + - his love of films and novels in the horror genre + ++ fluctuate +> (v)if a price or amount fluctuates, it keeps changing and becoming higher and lower. + + - Insect populations fluctuate wildly from year to year. + - Prices were volatile, fluctuating between 20 and 40. + ++ bar +> (n)all lawyers considered as a group, or the profession of law. + + - sit for the bar: take part in the bar examination + - she was admitted to the bar in her early thirties. + - Less than a quarter of graduates from the law school pass the bar exam on the first try. + ++ guild +> (n)an organization of people who do the same job or have the same interests. + + - the Women's Guild + - the Writers' Guild of America + ++ hindrance +> (n)something or someone that makes it difficult for you to do something.
+> (n)the act of making it difficult for someone to do something + + - The higher rates have been a hindrance to economic recovery. + - The floods have been a major hindrance to relief efforts. + - Visitors are allowed to wander without hindrance. + ++ lucrative +> (adj)a job or activity that is lucrative lets you earn a lot of money, profitable. + + - He inherited a lucrative business from his father. + - Thousands of ex-army officers have found lucrative jobs in private security firms. + ++ upstart +> (n)someone who behaves as it they were more important than they really are and who shows a lack of respect towards people who are more experienced and or older. + + - Many prefer a familiar authority figure to a yound upstart. + ++ statu quo +> (n)the present situation + + - Certain people always want to maintain the staus quo. + ++ lone +> (adj)used to talk about the only person or thing in a place, or the only person or thing that does something. + + - the lone survivor of the shipwreck + - A lone figure was standing at the bus stop. + ++ outgrow +> (v)to grow too big for something
+> (v)to no longer do or enjoy something that you used to, because you have grown older and changed + + - Thet outgrew their clother so quickly. + - Most children eventually outgrow a tendency towards travel sickness. + ++ liberal +> (adj)willing to understand and respect other people's ideas, opinions, and feelings.
+> (adj)allowing people or organizations a lot of political or economic freedom
+> (adj)giving, using, or taking a lot of something, or existing in large quantities + + - I had quite liberal parents. + - a liberal democracy with a multiparty political system + - As always he is liberal with jokes. + - Chemical products were used liberally over agricultural land. + ++ critical +> (adj)if you are critical, you criticize someone or something. + + - Many economics are highly critical of the government's economic policies. + - Many parents are strongly critical of the school. + ++ contemptuous +> (adj)showing that you think someone or something deserves no respect. + + - a contemptuous glance + - He's openly contemptuous of all the major political parties. + ++ set back +> (v)if something sets you back or sets back a project or plan, it causes a delay. + + - It has set us back in so many aspects that I'm not sure how long it will take for us to catch up. + ++ citizenry +> (n)all the citizens in a particular town, country, or state. + + - The country's citizenry is(are) more politically aware than in the past. + ++ propaganda +> (n)information which is false or which emphasizes just one part of a situation, used by a government or political group to make people agree with them. + + - the government propaganda machine + - the spreading of political propaganda