轻举妄动

qīng jǔ wàng dòng

to act rashly

Character by character

轻qīng
light

举jǔ
action

妄wàng
reckless

动dòng
move

情况还不清楚，千万不要轻举妄动。

The situation is still unclear; whatever you do, do not act rashly.

Tone: negative (criticism).

Learn this in Lesson 102 · HSK 7–9: 读懂官方新闻 (Decoding the evening news)

A dialogue, a reading, word cards with audio and a drill that uses it, in Learn Chinese with Bao. This lesson is free.