weakeradj.较弱的形容词weak的比较级形式.weakadj.弱的；虚弱的；无力的；差的；淡薄的weak subgrade软弱路基Weak seedling弱苗weak point.n.弱点weak currency弱货币,疲软货币weak students学困生weak concrete低标号混凝土weak opponent弱敌weak interbed软弱夹层weak extremal弱极值weak homology弱同调