逃漏

zài gào fā nǐ lǎo zǒng táo lòu shuì zhī qián zuì hǎo xiān què dìng nǐ shú zhī suǒ yǒu nèi qíng

在告发你老总逃漏税之前，最好先确定你熟知所有内情。

You should make sure you know all the facts before you blow the whistle on your boss for tax evasion.