污点证人的英文：
tainted witness
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。
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