Um, I was thinking of going to a movie tonight. Would you like to come?

我今晚想去看电影，你愿意一起去吗？

It makes a tremendous difference to me.

这对我来说差别极大。

He owes his wealth to diligence and good luck.

他的财富是由于他的勤劳和幸运。

How do you say that in English?

那个用英语怎么说？

Do I have to get it done by noon?

我必须在中午以前做完吗？

Don't interfere in my affairs.

别干涉我的事情。