weak D弱Dweakadj.弱的；虚弱的；无力的；差的；淡薄的weak colony弱势群体weak demand需求疲软weak singal微弱信号weak domain弱Domainweak method弱方法weak saddle细鞍点weak object弱对比度景物weak vesseln.(基督教《圣经》中的)女人weak planes弱面weak target小目标