can you give me some water和could you give me some water 有什么区别啊?

问题描述:

can you give me some water和could you give me some water 有什么区别啊?

can(不拘礼节时常用,举例:can i have a look at your new design?我可以看你的新设计麽?could(表委婉、礼貌时用举例:Cound l use your phone?希望得到肯定回答.)