HSK 7-9
潜移默化
qiányí-mòhuàimperceptible influence; to influence secretly
家庭氛围会潜移默化地影响孩子。
Jiātíng fēnwéi huì qiányímòhuà de yǐngxiǎng háizi.
The family atmosphere subtly influences children over time.
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Appears across levels (7-9) in the HSK 3.0 word list.