HSK 7-9
留神
liúshén动
to take care; to be careful
下雨路滑，骑车时要多留神。
Xiàyǔ lùhuá, qíchē shíyào duō liúshén.
Be extra careful when cycling on slippery roads in the rain.
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Appears across levels (7-9) in the HSK 3.0 word list.