彻查

tā yǐ jīng dā ying chè chá zhè qǐ shòu huì àn

他已经答应彻查这起受贿案。

He has promised a thorough investigation into the bribe-taking case.

wǒ huì chè chá nǐ de suǒ yǒu kāi xiāo

我会彻查你的所有开销！

I'll go through all your expenses!

zhěng gè shì jiàn bù guāng cǎi jí xū chè chá

整个事件不光彩，亟须彻查。

This is a disgraceful state of affairs and cries out for a thorough investigation.