drop off 减弱,减少drop out 退出,离队drop by/in 顺便来访drop litter 扔垃圾 drop on 训斥,惩罚drop to one's knees 跪下drop the curtain 闭幕/演出终止 drop by 顺便拜访,路过时进去看看;下降了…drop over 顺便来访 drop back 后退,后撤;恢复drop by the wayside 迷入歧途,堕落,遭受失败drop dead 倒毙,倒地而死;走开,不再捣乱,安静下来dead drop 情报秘密传递点drop down 卧倒,顺着向下移动drop behind 落后,落伍drop press 落锤,模锻压机,模锻压力机drop a line 写信给某人drop anchor 抛锚cough drop 止咳药片potential drop 电位降,磁势降drop curtain 垂幕lemon drop 柠檬糖drop shot 扣球drop arch 垂拱,平圆拱drop hammer 单作用锤,模锻锤,桩锤,锻锤drop away 离开,散去,减少voltage drop 电压降drop in 顺便走访,不预先通知的拜