中午一起去吃饭吧。

Zhōngwǔ yìqǐ qù chīfàn ba.

Let’s go eat together at noon.

下午三点我们在图书馆见面。

Xiàwǔ sān diǎn wǒmen zài túshūguǎn jiànmiàn.

We will meet at the library at three in the afternoon.

今天中午你想吃米饭还是面条？

Jīntiān zhōngwǔ nǐ xiǎng chī mǐfàn háishi miàntiáo?

What would you like to eat at noon today, rice or noodles?