collusion

共谋、勾结、串通

Investigators found clear evidence of collusion between the two officials.

调查人员发现两名官员勾结的明确证据。

联合垄断、联合操纵经济

The airlines were fined for collusion on ticket prices.

这些航空公司因联合操纵机票价格而被罚款。

与……串通、与……勾结

The guard was acting in collusion with the thieves.

那名警卫是和小偷串通好的。