中午好,用英文怎么表达？?

NO! Just like the students didn't have a good noon break.

没精打采的`，就象学生们没睡好午眠那样！

Guests should check out of their rooms by noon.

客人必须在中午以前办理退房手续。

I'm leaving on the noon train.

我坐中午的火车走。

There's a connecting flight at noon.

中午有一趟相衔接的航班。

The conference opens at 12 noon on Saturday.

这次会议在星期六中午12点开幕。