短語詞組短語back -stop 備用BS Back Channel Stop 背溝道保護(hù)型basketball back stop 籃球架top retainer back stop 門檐擋鐵back stop motion 后退停止運(yùn)動(dòng)armature back stop 銜鐵后擋Turn Back Stop 反轉(zhuǎn)提針door back stop 門擋 返回 back stop