地铁 (dì tiě): 地下鉄; 地下鉄; 地下鉄車両; 地下鉄; 地下鉄; メトロ

I take the subway to work every day.

There is a convenience store near the subway station.

This subway system has opened a new line.

What time is it now? Is the subway still running?

Beijing's subway is both cheap and convenient.