diào chá
调查事实真相
diàochá shìshí zhēnxiàng
Investigate the truth of the facts
没有调查，就没有发言权
méiyǒu diàochá, jiù méiyǒu fāyánquán
Without investigation, there is no right to speak
事情还没有调查清楚，不能忙着处理。
shìqing hái méiyǒu diàochá qīngchu, bù néng mángzhe chǔlǐ.
The matter has not been investigated clearly yet, so we cannot rush to handle it.