污点证人的英文：
tainted witness

tainted是什么意思：
adj. 污染的；沾污的
v. taint的过去式和过去分词；污染

To contaminate;taint.
损坏；玷污

To taint;contaminate.
使有缺点；玷污

You have only tainted evidence.
你们只有有瑕疵的证据。

Smog has tainted the air.
烟雾污染了天空。

Meat will readily taint in close weather.
肉在闷热天气容易腐败。

witness是什么意思：
n. 目击者；见证人；证人；证据；证言
v. 目击；注意到；为...作证；证明

There is a witness everywhere
群众的眼睛是雪亮的

Wit Bought is better than wit taught
不经一事,不长一智

Long hair and short wit
头发长,见识短

Great wits have short memories
贵人多忘事

Sloth turneth the edge of wit
懒惰会磨去才智的锋芒