weak in在 ... 方面弱／差的weakadj.弱的；虚弱的；无力的；差的；淡薄的weak subjacent bed软弱下卧层weak podzolic soil弱漂白土weak calf syndrome牛犊虚弱综合征weak invertibility弱可逆weak monsoon years弱季风年weak smash product弱smash积weak standard form准标准形weak-caking coal弱粘结性煤weak interpolation弱插值weak Hopf bimodule