vt.
作证；证实，证明：
She testified under oath that the defendant was innocent.
她发誓证明被告无罪。
to testify someone's honesty
证明某人诚实
声明；表明；表白：
to testify one's regret
说对不起，表示歉意
The boss testified his appreciation of Tom's work by raising his pay.
老板给汤姆加薪，以示对他的工作的赞赏。
[古