I haven't touched a drop all evening.

　　整個晚上我滴酒未沾。

　　Add the cream a few drops at a time

　　每次加幾滴奶油。

　　Drop me a line when you get there.

　　你到那兒后給我寫封信。

　　I think we'd better drop the subject.

　　我認為我們最好不要再談這個話題。

　　She did a year at college, but then dropped out.

　　她在大學(xué)讀了一年書，但后來就輟學(xué)了。