1.Can I have another one不是"再来一份"

Can I have another one?表示对菜品不满意，需要更换一份。

"再来一份"这样说

Just one more, please.

帮我再上一份一样的，谢谢。

Excuse me sir, one more strawberry cheese cake with cream on top, please.

您好，再来一块草莓芝士蛋糕，顶上加奶油那种，谢谢。

2.Where you from可没问，你从哪个国家来的！where you from=我去哪里接您

正确表达：

Where do you come from？=从哪个国家来

- Where you from？

去哪里接您？

- 150 Charing Cross Street thanks.

150号查令十字街路，谢谢。

3.有事要忙也别说 I have something to do没礼貌！

have something to do=我有事要做

(谁还没点事,我约你就不是事吗)

委婉的说法是：

I'm tied up.我脱不开身

I can't make it at that time.我那时候不太行啊。

I'd love to, but...我很想去，但是...

Sorry, I'm tied up all day, how about this weekend?

抱歉啊，我太忙了，要不周末吧。