afford 和 pay 有何区别?

afford 和 pay 有何区别? pay afford区别 pay afford区别 afford与pay有什么区别 pay afford区别 pay attention to和be careful with有何区别? spend与pay...for有何区别 spend cost afford pay take和road street avenue highway的区别和用法 pay for 和pay to 有什么区别? pay sth.和 pay for sth.有什么区别 英语中的：take spend cost pay 有何区别? provide和afford的区别 afford和buy的区别