weak at在 ... 方面弱的weakadj.弱的；虚弱的；无力的；差的；淡薄的weak dysentery虚羸利weak interface弱界面weak stability弱稳定性weak convexity弱凸性weak component弱分量,弱支weak community弱势群体weak normality弱正规性weak variation弱变化weak invertion弱反型weak existence弱存在