放贷机构常常与借款者勾结，以扩大抵押贷款规模，或者更糟糕的是，向借款者兜售错误的政策。

Too often lenders connived with borrowers to swell the size of mortgages, or worse, sell borrowers the wrong policy.

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最后，执法者必须与勾结串通决裂。

Finally, law enforcement must crack down on collusion.

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也有人担心大型的专利持有集团勾结起来攻击个人的发明者，以把他们赶出某个市场。

There are also worries about the possibility of tacit collusion among large patent-holders, who might attack individual inventors in order to keep them out of specific markets.

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