英语语法分析

Here are the temperatures recorded at the four metros at 5 o'clock this morning.

这是今天早晨5点钟时四大城市的气温记录。

《牛津词典》

Beijing needs more metros and buses.

北京需要更多的地铁和公共汽车。

In the States, there are usually more buses and metros or subways.

在美国，通常有更多的公共汽车和地铁。