见风使舵

jiàn fēng shǐ duò

to trim one’s sails; opportunistic

Character by character

见jiàn
see

风fēng
wind

使shǐ
steer

舵duò
rudder

他很会见风使舵，哪边有利就站哪边。

He’s a real weathervane, siding with whoever has the advantage.

Tone: negative (criticism).

Steering by the wind: changing sides to suit the moment.

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