adj.不能用的...

unusable的音标：unusable的英式发音音标为：[ˌʌn'ju:zəbl]unusable的美式发音音标为：[ʌn'juzəbəl]...

Bombing had made roads and railways unusable.轰炸导致公路和铁路都无法通行。The point of degradation, due to attenuation or distortion, at which a signal becomes unusable.由于衰减或失真使得信号变得不能使用的那个退化点.Mortality is the number or volume of tree...

The point of degradation, due to attenuation or distortion, at which a signal becomes unusable.由于衰减或失真使得信号变得不能使用的那个退化点.Mortality is the number or volume of trees periodically rendered unusable through natural causes.枯损是一...