形容詞 cogent:

1. powerfully persuasive
   同義詞：telling, weighty

1. A brief, apt, and cogent expression.
   簡(jiǎn)潔的語(yǔ)句，警句簡(jiǎn)潔貼切且令人信服的表達(dá)
2. The lawyer's cogent arguments convince the jury.
   這位律師強(qiáng)有力的爭(zhēng)辯博得陪審團(tuán)之信服。
3. Maybe the most cogent comment on a topic which so far has generated more heat than light came from Mr Carter.
   也許，對(duì)目前已經(jīng)引起爭(zhēng)論的議題最有說(shuō)服力的評(píng)論是由卡特先生所作的。

co.gent

adj.（形容詞）
Appealing to the intellect or powers of reasoning; convincing:
有說(shuō)服力的：用推理的才智和能力的；使人信服的：
例句：
a cogent argument.See Synonyms at valid
有說(shuō)服力的論據(jù)參見 valid

來(lái)源：
Latin côgôns côgent- [present participle of] côgere [to force]
拉丁語(yǔ) côgôns côgent- [] côgere的現(xiàn)在分詞 [強(qiáng)有力]
co- [co-]
co- [前綴，表.相互，一起.]
agere [to drive] * see ag-
agere [驅(qū)使] *參見 ag-

【引伸】
co.gency
co.gently
adv.（副詞）