pay..for,spend,cost的区别是什么?

pay..for,spend,cost的区别是什么? pay for cost spend buy 的区别? pay、spend、cost的区别是什么? cost spend pay的区别 pay,cost,spend的区别! 英语中take,cost,spend,pay for的区别 cost,spend,pay for,take,的用法,和区别, cost ,pay for ,spend,take,的用法,和区别 pay for take spend on cost 的用法及区别? take、cost.pay for、spend表示花费的区别 spend take cost pay 语法上的区别是什么 pay cost spend区别