勾结的英文：
collude with
collaborate with
gang up with

Collusive oligopoly: Oligopoly where participants act as a cartel.
勾结性垄断:参与并作为一个卡特尔行事的垄断行为。

Hooked up with the wrong crowd
与一帮坏人勾结在一起

The police were in collusion with the criminals
警察与罪犯勾结在一起。

He was accused of having collaborated with the secret police.
他被控与秘密警察勾结。

He's playing footsie with the conservatives.
他与保守党员在暗中勾结。

The two criminals were in cahoots
那两个罪犯勾结在一起.

Any one who collaborates should be shot.
与敌人勾结者一律枪决。

They linked up with this gang.
他们与这一帮人勾结起来。

They secretly entered into collusion with the northern warlords.
他们喑中和北洋军阀勾结起来。

Pricing decisions made in a collusive atmosphere come close to monopoly pricing
在勾结的情况下制定的价格，接近于垄断价格。

Have a collaborator stand at the exit.
让一位合作者站在出口处。

They worked either in collaboration or independently.
他们要么协作要么独立工作。

Then the long collaboration fell apart.
长期的合作就这样破裂。

This is a gang of chisels.
这是一套凿子。

The depredations of the gangs terrified the neighborhood.
歹徒们的劫掠行为使街坊邻居惊恐万状。

To band together as a group or gang.
使成一组作为一群或一帮结合在一起