drop in的意思是偶然拜访,顺便拜访。
drop a bunch of …掉下〔摘下〕;
drop a course退修一门课程;
drop a line垂钓;
drop a letter from a word单词中漏掉一个字母;
drop a purse丢失钱包;
drop a lot of money at a race在竞赛中输了不少钱;
drop a stitch使(编织)跳了一针;
drop a subject放弃一个科目;
drop anchor抛锚;
drop coin投硬币;
drop idea打消想法;
drop line写信;
drop one's eyes低头看;
drop one's name不再谈自己的名字;
drop one's name from the list名单中丢掉了某人的名字;
drop one's package丢失包裹;
drop one's opponent in the first round第一轮回合把对手击倒;
drop one's umbrella把雨伞掉了;
drop one's voice放低声音。
drop in at sp和drop in on sb 中in的词性是什么
介词用“词组构法”的角度来想的话会更简单,一般地,像drop in,pick up等这样的短语的结构为“动副结构”(注意:“动副”型短语用作vt后接宾语时,如果宾语为n,adv位于n前后皆可;如果宾语为人称pron,则该pron必须位于v和adv之间)。Drop in at+地点 拜访某地 drop in on+人 拜访某人而在动副短语之后的词一般是介词,你如果不懂,可以想想初一的“look forward to”Look (v) forward (adv) to(prep) 就是因为to是介词,这不才加V-ing形式吗?