With the exception of South Africa, the only light rail metro system in sub-Saharan Africa is in Addis Ababa, Ethiopia.

除了南非，非洲撒哈拉以南地区唯一的轻轨地铁系统位于埃塞俄比亚的亚的斯亚贝巴。

youdao

Upshot: new airport, metro system.

遗产：新机场，地铁系统。

youdao

London has a bigger underground, or metro system.

伦敦的地铁系统要大一些。

youdao

He says the display was designed to look like a map of the local Washington Metro train system instead of a tree.

VOA: special.2009.12.01

All are very well connected by the efficient (but bewildering to visitors) Tokyo Metro system.

BBC: Business trip: Tokyo

The metro system in particular, only a few years old, can compare with any underground system in the world.

BBC: NEWS | South Asia | Delhi wants Games to provide legacy

Cardiff-born businessman Mark Barry has formed a consortium to push for the new metro system of trains, trams and buses.

BBC: Sir Terry Matthews