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偶然(或顺便)走访(或访问)(on)；逐渐进入：
[口语](有选择地)加入；愿意(或决心)参加：
(使)落进；(使)往里坍塌：
【戏剧】放下(吊幕)\u
1、drop over───vt.顺便来访；顺便拜访
2、drop in on───v.顺道拜访
3、draggle drop───拖拉
4、beat drop───节拍下降
5、drop───n.滴；落下；空投；微量；滴剂；v.推动；帮助；宣扬；下降；终止
6、cram drop───补习班
7、clumsily drop───笨拙地跌落
8、drag drop───拖放
9、sweet drop───甜点
1、But such a severe drop in income, at a time of reduced job opportunities elsewhere, limited the appeal of such offers.───但当别处的工作机会减少时，如此大幅的收入缩减会限制这类建议的吸引力。
2、drop in interest rates gave a welcome fillip to the housing market.───降低利率给房屋市场带来利好刺激。
3、Your "big numbers" here are really just a drop in the bucket, fractions of fractions of a percent of our user base.───你所说的“大数字”只是用户基数的很小一部分。
4、But the sharp drop in February compared with a year ago was unexpected; economists had been predicting little change.───与去年同期相比，二月份出口量暴跌出人意料，而经济学家一直预测说不会有太大变化。
5、Rain played a big part in the air show's drop in attendance.───下雨是这次飞行表演观众数量下降的主要原因。
6、Studies noting the sex of babies conceived in New York during the week of the attacks found a drop in the ratio of males to females.───对恐怖袭击发生的那一周怀上的婴儿的性别进行研究，人们发现男女的比率有所下降。
7、"The recent drop in production is a sort of psychological panic, " he said.───他表示：“近期的减产是一种心理恐慌。”
8、In his design, moisture-laden air enters the system and is cooled by a drop in pressure behind the wind turbine blades, says Whisson.───在他的设计，水分-LaDeng的空气进入XiTong，并正在冷却下降，在压力背后的风力涡轮机叶片，说whisson。
9、He was prepared to take a drop in wages.───他准备好了接受一次工资的快速下调。
1、The restaurant has suffered a big drop in trade.
2、Many people experienced a drop in their cholesterol levels when they consumed oat bran.
3、Scientists have observed a drop in ozone levels over the Antarctic.
4、Most companies have suffered a drop in their profits,[http://sentencedict.com/drop in.html] even very large companies.
5、Do drop in if you happen to be passing!
6、The management's preoccupation with costs and profits resulted in a drop in quality and customer service.
7、There has been an appreciable drop in the number of unemployed since the new government came to power.
8、The prime minister will drop in at the disaster area.
9、Government statistics show the largest drop in industrial output for ten years.