Last I heard, there are supposed to be four lanes - bidirectional freight, and bidirectional passenger.

最近我听说，有被认为是四车道-双向运费，和双向载客。

youdao

Last I heard, there are supposed to be four lanes - bidirectional freight, and bidirectional passenger.

最近我听说，有被认为是四车道-双向运费，和双向载客。

youdao