The building of the bridge is very important for the transportation between the two towns.
这座桥的建造对这两个镇的交通很重要。
The train is a safe means of transportation.
火车是一种安全的交通工具。
A passenger or cargo system of public or private transportation, as by ship, aircraft, or bus, usually over a definite route.
（固定路线的）运输系统通常有固定路线的公有或私有贷运或客运系统，如船运、空运或汽运
