pay的用法有pay for sth.付款买某物；pay for sb.替某人付款；pay（sb.）＋钱＋for sth.给某人钱买……；pay sb.付款给某人；pay money back 还钱等。
相关介绍：
pay的基本用法
(1)pay (sb.) money for sth. 付钱（给某人）买……。例：I have to pay them 20 pounds for this room each month. 我每个月要付20英磅的'房租。
(2)pay for sth. 付……的钱。例：I have to pay for the book lost.我不得不赔丢失的书款。
(3)pay for sb. 替某人付钱。例：Don?蒺t worry!I'll pay for you.别担心，我会给你付钱的。
(4)pay sb. 付钱给某人。例：They pay us every month.他们每月给我们报酬。
(5)pay money back 还钱。例：May I borrow 12 yuan from you? I'll pay it back next week.你能借给我12块钱吗？下周还你。
(6)pay off one's money 还清钱。
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