Kitty is shopping with Lucy and Simon.

基蒂正在和露西，西蒙购物。

Look at this watch.It's nice.

看这块手表。它多漂亮啊。

What's a watch?

手表是干什么的？

A watch is used for telling the time.

手表是用来了解时间的。

This key ring is nice too.

这个钥匙链也很漂亮。

What's a key ring?

钥匙链是干什么的?

A key ring is used for holding the keys.

钥匙链是用来系住钥匙的。