HSK 5
有助于
yǒuzhùyú动
to contribute to; to promote
早睡有助于保持好心情。
Zǎo shuì yǒu zhù yú bǎo chí hǎo xīn qíng.
Going to bed early helps maintain a good mood.
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New in the HSK 3.0 word list at level 5.