a means of communication

• 交际工具

a means of communication的用法和样例：

例句

1. Language is a major means of communication.
   语言是主要的交际工具。
2. TV may be a good communication tool, but it's obstructing communications between people.
   电视也许是一种优秀的交际工具，但它却妨碍着我们相互间的交流。