每日英语单词63:define


The mankind’s courage and resolution will be witnessed and remembered by stars.
人类的勇气和坚毅必将被镌刻在星空之下。

今日单词

define

vt.  规定; 使明确; 精确地解释; 画出的线条;

vi.  (给词、短语等)下定义,构成释义;

形近词

 

 

refine

vt.  提炼; 改善; 使高雅;

defile

vt.  玷污;  污染;  弄脏;  纵列行进;

n.  峡谷,隘路;

definite

adj.  明确的;  一定的;  肯定;  有把握;

refined

adj.  精炼的; 精制的;举止优雅的;

v.  精炼( refine的过去式和过去分词); 精制;

defiance

n.  蔑视; 挑战; 反抗;


 

define   
英 [dɪˈfaɪn]  美 [dɪˈfaɪn] 
     CET4 | CET6 | 考研
vt.  规定; 使明确; 精确地解释; 画出…的线条;
vi.  (给词、短语等)下定义,构成释义;
词根:de加强语意+fine边界→define
① (VERB) 阐明;规定;限定;使明确 
If you define something, you show, describe, or state clearly what it is and what its limits are, or what it is like.
● We were unable to define what exactly was wrong with him... 
我们说不清楚他到底哪里不对劲。
● He was asked to define his concept of cool. 
他被要求说明自己关于“酷”的定义。
② (VERB) 给…下定义;解释 
If you define a word or expression, you explain its meaning, for example in a dictionary.
● When people are asked'What is intelligence?' they tend to reply: 'I don't know how to define it, butI can certainly recognize it when I see it.'... 
当被问及“智力是什么”的时候,人们往往会回答说:“我不知道该如何定义它,但我见到了肯定就能认得出。”
● Collins English Dictionary defines a work aholic as 'a person obsessively addicted to work'.
《柯林斯英语词典》给“工作狂”一词下的定义是“一个过分沉溺于工作中的人”
 
形近词:
1、refine
英[rɪˈfaɪn]   美[rɪˈfaɪn] 
     CET4 | CET6 | 考研| IELTS | TOEFL
vt.  提炼;改善;使高雅;
① (VERB) 提炼;精炼 
When a substance isrefined, it is made pure by having all other substances removed from it.
● Oil is refined toremove naturally occurring impurities. 
油经过提炼去除天然存在的杂质。
② (VERB) 改进,改善,改良(过程、理论或机器) 
If something such as aprocess, theory, or machine is refined, it is improved by having small changes made to it.
● Surgical techniques areconstantly being refined. 
外科手术的技术不断得到完善。
 
2、defile
英 [dɪˈfaɪl]   美[dɪˈfaɪl] 
     IELTS | GRE
vt.  玷污;污染;弄脏;纵列行进;
n.  峡谷,隘路;
词根:de加强意义+fil弄脏→使变脏→污损
① (VERB) 污损;玷污;亵渎 
To defile something that people think is important or holy means to do something to it or say something about it which is offensive.
● He had defiled the sacred name of the Holy Prophet. 
他亵渎了这位神圣先知的圣名。
② (N-COUNT) (通常指山中的)峡谷,峡道,隘路 
A defile is a very narrow valley or passage, usually through mountains.
 
3、definite
英 [ˈdefɪnət]   美[ˈdɛfənɪt] 
     CET4 | CET6 | 考研| IELTS | TOEFL | GRE
adj.  明确的;一定的;肯定;有把握;
词根:defin明确+ite形容词后缀→definite
①(ADJ-GRADED) 明确的;确定的
If something such as a decision or an arrangement is definite, it is firm and clear, and unlikely to be changed.
●It's too soon to give a definite answer... 
要给出一个明确的答复,现在还为时过早。
②(ADJ) (证据或信息)确凿的,确切的
Definite evidence or information is true, rather than being someone's opinionor guess.
●We didn't have any definite proof... 
我们没有任何确实的证据。
 
4、refined
英 [rɪˈfaɪnd]   美[rɪˈfaɪnd] 
     TOEFL
adj.  精炼的;精制的; 经过改良的; 举止优雅的;
v.  精炼(refine的过去式和过去分词); 精制; 使纯净;使文雅高尚;
词根:refin=refine提炼+ed形容词后缀→refined精炼
① (ADJ-GRADED) 精炼的;去杂质的;提纯的 
A refined substance has been made pure by having other substances removed from it.
● ...refined sugar. 
精制白糖
② (ADJ-GRADED) (人)有礼貌的,有教养的,彬彬有礼的,有品位的 
If you say that someoneis refined, you mean that they are very polite and have good manners and good taste.
● ...refined andwell-dressed ladies... 
举止优雅、衣着考究的女士们
③ (ADJ-GRADED) 经过完善的;经过提升的 
If you describe a machine or aprocess as refined, you mean that it has been carefully developed and is therefore very efficient or elegant.
● ...a more refined engine... 
更加完善的引擎
5、defiance
英 [dɪˈfaɪəns]   美[dɪˈfaɪəns] 
     IELTS | GRE
n.  蔑视;挑战; 反抗;
词根:def挑战+i+ance名词后缀→defiance挑战
① (N-UNCOUNT) 违抗;蔑视;挑战 
Defiance is behaviour or an attitude which shows that you are not willing to obey someone.
● ...his courageous defiance of the government. 
他对政府的勇敢挑战
② (PHRASE) 违抗(某人);无视,不顾(规定、法律等)
If you do something in defiance of a person, rule, or law, you do it even though you know that you are not allowed to do it.
● Thousands of people have taken to the streets in defiance of the curfew. 
成千上万的人不顾宵禁涌上街头。
 
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