dropinn.磁带杂音信息(落入)dropvt.落下；跌倒；下降；放弃；漏掉；断绝关系n.滴；微量；减少；滴状物drop-out of gear失啮droppings of fowls鸟粪drop one's aitches漏发词首的/h/音...drop in test group薄片上的测试芯片组Droping saccharide降糖dropped a courtesyv.行屈膝礼dropped elbow pull沉时划水Dropped from Rolls从花名册上除名drop-center axle中凹式前桥dropped your guardv.丧失警惕