takepreventivemeasures;provideagainstpossibletrouble;防患于未然
sourceofendlesstroubles;后患无穷
There'snoneedtoworry.何患之有。
Whiletheyhavenotgottheiraims,theiranxietyishowtogetthem;whentheyhavegotthem,theiranxietyislesttheyshouldlosethem.其未得之也,患得之;既得之,患失之。
HuanRan患然
contract[have]hepatitis;患肝炎
Ilearnedthathewassufferingfromcancer.我听说他患了癌症。
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