HSK 5
预防
yùfáng动
to prevent; to take precautions against; to protect; to guard against
经常洗手可以预防感冒。
Jīng cháng xǐ shǒu kě yǐ yù fáng gǎn mào.
Washing your hands often can prevent colds.
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New in the HSK 3.0 word list at level 5.