unwantedadj.不需要的；多余的；无用的；讨厌的；不受欢迎的unwanted signal frequence无用信号频率Unwanted cognitive activity有害认知活动unwanted advice/attention多余的劝告/关照unwanted frequency modulation无用调频unwanted amplitude modulation无用调幅unwanted reactions of the drugs药物不良反应unwanted intermodulation product无用互调产物