The police were corrupt and were operating in collusion with the drug dealers.
警察腐败，与毒品贩子内外勾结。
There was collusion between the two witnesses(= they gave the same false evidence) .
两个证人串通作伪证。
1.共谋;互相勾结
1.the secret activities of people who work together to do something dishonest
1.If it had not been for collusion between criminals and a few corrupt police officers, the drug ring would have been exposed long ago.
若不是因为罪犯们的串通和几个腐败的警方官员，这个贩毒集团早就被曝光了。
2.If he just killed the murderers, fine, but he kills the whole gang, works his way up the chain, and kills anyone in collusion.
若他只是杀掉凶手，OK，这还好说。可是他依据线索杀掉了整整一帮人。
3.The solicitor warned his client that he would not obtain a porce if he and his wife were found to be in collusion.
律师警告他的当事人说，要是发现他与他的妻子勾结的话，他就不会获准离婚。
4.Some of collusion between police and female prostitution, the hook to attract clients, prostitutes and a fine equal.
有的警察和卖淫女勾结，吸引嫖客上钩，罚款和妓女平分。
5.The collusion could be in an explicit agreement, or in a more subtle form -- known as tacit coordination or coordinated interaction.
这种串谋可以是一个很明显的协定，也可能是以较为隐蔽的方式。
6.The fact proves that it is no good grounds on the statement that this bankrupt trust company is in collusion with the government.
事实证明，这家信托公司破产与政府有共谋的说法是没有根据的。
7.Adjutants still kept galloping up from every side, and all, as though in collusion, said the same thing.
副官们从各方面不断驰来，他们好像商量好似的，都说同样的话。
8.The bank investigates allegations of fraud, corruption, collusion, coercion and obstruction involving its financing or personnel.
世界银行对涉及其资金和人员的诈骗、腐败、勾结、胁迫和妨碍行为的指控进行调查。
9.Quite rightly, that sort of collusion is now illegal.
不错，这种共谋如今是非法的。
10.It was not known whether the price increases resulted from higher costs or from collusion among the producers.
不知道价格的上涨是由于成本的提高，还是制造者之间的勾结。