自作主张

zhè jiàn shì wǒ men děi qǐng qiú zhǐ shì bù néng zì zuò zhǔ zhāng

这件事我们得请求指示，不能自作主张。

We can't decide this for ourselves, we must ask for instructions.

dà duō shù gāo lì dài zhài zhǔ bù xǐ huan bié rén zì zuò zhǔ zhāng

大多数高利贷债主不喜欢别人自作主张。

Most loan sharks don't take too kindly to independent thinking.

tā zì zuò zhǔ zhāng

他自作主张。

He acted on his own initiative.