轻型轨道交通

qīng xíng guǐ dào jiāo tōngqingxingguidaojiaotong

1. light rail
2. transit system (underground, at street level or elevated)
3. streetcar
4. metro
5. abbr. to 輕軌|轻轨[qing1 gui3]

Study it in Yanamino