Someone who is very worried or upset.
一个非常担心或不安的人。 (Yī gè fēicháng dānxīn huò bù'ān de rén.)
"He’s a nervous wreck before every exam."
"他在每次考试前都是一个紧张的残骸。" (Tā zài měi cì kǎoshì qián dōu shì yī gè jǐnzhāng de cánhái.)
to counteract or cancel the effect of something
to persuade someone to do something
a very good and honest person
to be caught in the act of doing something wrong
to be treated in the same unpleasant way that you have treat...
A security flaw in software that is exploited by hackers bef...