客人必须在中午以前办理退房手续。
Guests should check out of their rooms by noon.
中午快餐吃意大利面绝对没错。
For a quick lunch you can't go wrong with pasta.
中午，我的时间只够吃点心。
I only have time for a snack at lunchtime.
这次会议在星期六中午12点开幕。
The conference opens at 12 noon on Saturday.
