Hang up: Seize the opportunity. Make a decision immediately in an emergency.

[Pinyin]

dāng jī lì duàn

[source]

Lin's "Answer to King Dong 'a": "Hold the soldiers of Qing Ping; The bell is silent; The machine should be broken. "

[example]

Teacher Wang made a decisive decision and went to the hospital behind Xiaoling's back.

[near meaning]

Make a clean break. A strong man must have determination to break his wrist. ...

[antonym]

The timid first mouse has been hesitating at both ends. ..