pay for 的意思是什么

pay sb.for doing sth.是什么 意思? pay for summer camp的意思 pay..for,spend,cost的区别是什么? pay for sth的意思 I pay 5yuan for the book的意思 He offered to pay for this chair这句话的意思是什么 pay...for和pay for的区别 pay for的意思,和用法详细的说 pay,pay for,pay back,pay off,pay back for的用法 有pay to do sth 的用法吗,和pay for sth 意思一样吗 pay for 和pay back的区别? pay for与pay to的区别 pay off与pay for的区别