不可数名词：

1.运输，运送；输送；搬运

2.（旧时的）流放

单词分析

这些名词均有“交通”之意。

communication指邮电、无线电、铁路、公路等各种交通方式或媒介。

traffic指来往的东西的情况，表示一种抽象概念的交通流动量。

transportation指将乘客或货物从一处运到另一处，也可指交通运输工具。

英语解释

a facility consisting of the means and equipment necessary for the movement of passengers or goods

the United States federal department that institutes and coordinates national transportation programs; created in 1966

the act of moving something from one location to another

the sum charged for riding in a public conveyance

the act of expelling a person from their native land

the commercial enterprise of moving goods and materials