This idiom describes premature actions that put enemy on guard. It’s always used to warn people not to expose their real purpose too early before the good timing comes when they’re fully prepared to confront their enemy.
You’ll learn how to use it in the following examples:
nǐ xiànzài jiù dào tāmen gōngsī qù gōngkāi diàochá, yīdìng huì dǎcǎojīngshé de.
If you go to publicly investigate their company now, they’ll be alerted.
zhǐyǒu ràng dú fàn jìxù tāmen de jiāoyì, cái bùhuì dǎcǎojīngshé.
only if we let the drug dealers to continue their business, they won’t suspect.