concern
【英英释义】
v. if something such as a book or a piece of information concerns a particular subject, it is about that subject. 关于，涉及 V n / V pron-refl（反身代词） with n / no cont（没有进行时态） （中性）
柯林斯词典语法信息的缩略语：pron-refl reflexive pronoun 反身代词 / cont continuous 进行时态
if a situation, event, or activity concerns you, it affects or invovles you. 对……有影响，与……相关 V n / no cont
if something concerns you, it worries you.// if you concern yourself with something, you give it attention because you think that it is important. 使担忧，使心烦；关注，关心 （既有正面也有负面）
n. concern is worry about a situation. 不可数名词 忧虑，担心 oft N prep
n. a concern is a fact or situation that worries you. 可数名词 令人担忧的事实或情况 usu with poss （poss possessive 所有格）
n. someone's concern with something is their feeling that it is important. 可变名词（可变名词是指有时可以做可数名词有时可以做不可数名词的名词）关心，关切 oft N with n
n. someone's concerns are the things that they consider to be important. 可数名词 （对…）重要的事，关心的事 usu with poss
n. concern for someone is a feeling that you want them to be happy, safe, and well. if you do something out of concern for someone, you do it because you want them to be happy, safe, and well. 可变名词 关心，关怀，关爱 oft poss N
n. if a situation or problem is your concern, it is something that you have a duty or responsibility to be involved with. 单数名词 分内之事，（某人）负责的事 with poss
n. you can refer to a company or business as a concern, usually when you are describing what type of company or business it is. 可数名词 公司，企业（通常用于描述其类型） oft supp（名词补语） N （formal ） BUSINESS 商科语言
if a story, book, report etc concerns someone or something, it is about them.
【词义深度解析】
concern既可以做名词也可以做动词，词义可以表示正面（关心，关切、关爱）、负面（担忧，忧虑），也可以表示中性（涉及，相关）。它做动词时有一个常见的意思是“关于”，做这个意思时后面一般不需要接介词，直接跟宾语。可以替换about/on。
【例句学习】
1. The study concerns what people want at the end of life.
2. The most rigorously contended almost always concerns politics.
rigorously adv. 严厉地，残酷地
争论最激烈的几乎都是与政治相关的话题。
3. Poker playing concerns decision making.= Poker playing is all about decision making. 玩扑克时需要做许多决策。
4. The significant legal question concerning any charges that may be brought against Donald Trump is whether he will brazenly act on the claim that he has the absolute right to pardon himself from criminal jeopardy.
brezenly /ˈbreɪzənli/ adv. 厚颜无耻地
jeopardy /ˈdʒɛpədɪ/ n. dangerous situation 危险处境
川普是否如他宣称的那样厚颜无耻地赦免自己的罪行是有关川普任意一项指控中最为重要的法律问题。
【词汇运用】
1.翻译：这项最新报告研究的是英语流利度和收入的相关性。
This new reaserch concerns the correlation/relationship between income and the infulency of English. （自己）
The newest report concerns the correlation between English proficiency and income./ The most recent report concerns the relationship between language skills and earnings. （参考翻译）
分析：最新报告没有准确翻译。英语流利度，实际为熟练度或是否精通，proficiency。
2.生活场景应用
我对Coursera上面的博弈论课程很感兴趣。
I am interested in the courses concerning game theory on Coursera.