缩写自metropolitan,大都会，大城市。用于口语指地铁。

1. The new Metro is designed to run on unleaded fuel.

新的地铁系统设计为使用无铅燃料。

2. The metro is efficient and spotlessly clean.

地铁非常快捷，而且一尘不染。

3. Can you reach the park by metro?

你可以乘地铁到达那个公园 吗 ?

4. After failing a singing audition at the Metro-politan Opera, she turned to musical comedy.

在大都会歌剧院的试唱失败后，她转而投身歌舞喜剧。

5. The Metro journey back to the centre of the town was hot and uncomfortable.

乘地铁返回市中心又热又不舒服。