N-UNCOUNT
(尤指國家、組織間的)共謀，勾結，串通
Collusion is secret or illegal co-operation, especially between countries or organizations.
例句
He found no evidence of collusion between record companies and retailers...
他沒發現唱片公司與零售商串通一氣的證據。
Some stockbrokers, in collusion with bank officials, obtained large sums of money for speculation.
一些股票經紀人和銀行職員串通一氣，通過炒買炒賣賺了不少錢。