HSK 4
有效
yǒuxiào动
effective; in effect; valid
运动是减轻压力的有效办法。
Yùn dòng shì jiǎn qīng yā lì de yǒu xiào bàn fǎ.
Exercise is an effective way to reduce stress.
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New in the HSK 3.0 word list at level 4.