Ever since, people have difficulty in deciding whether the craft should be ranged among ships, planes, or land vehicles . 自那以来，人们一直很难决定这种运载工具在轮船，飞机，或陆上交通工具三者中，究竟归为哪一类。
When the only means of transportation were horses, camels and small boats, travelers were already crossing seas and deserts to acquire rare goods . 在只有马、骆驼和小船作交通工具的年代里，旅行者就已经横渡大海，穿越沙漠去获取稀有的货物。
An overloaded poorly maintained gasoline-or diesel-powered vehicle pouring out black smoke is an extreme illustration of visual air pollution . 以汽油或柴油为动力，维护得很差的，并排放黑烟的超载交通工具是可以看到的空气污染的最明显的例证。
Vessel is the very important transport tool by sea 船舶是重要的海上交通工具。
They may rent a car or use the bus 所采取的交通工具通常是租赁小车或搭乘巴士。
And does it belong in the water or on the road 它到底是水上还是路上交通工具？
Cars are very easy and convenient transportation 轿车是非常容易方便的交通工具。
People prefer to take public transportation vehicles 人们喜欢乘坐公共交通工具。
Car is one of the most important vehicles 汽车是当今社会最重要的交通工具之一。
For example , a vehiclemay only have one engine 比如，一个交通工具只有一个引擎。
