单词详解

n.

A. 延伸，扩展，延长 (process or action of extending)

He asked for an extension of his visa. 他申请延长签证的有效期。

B .延长部分，扩大部分，增设部分 (added part)

We built an extension to our house. 我们扩建了我家的房屋。

C. 电话分机 (an additional telephone set that is connected to the same telephone line)

There are telephone extensions in every office. 每间办公室都有电话分机。

相关单词

   动词: extend

近义词：spread

反义词：flexion

形容词：extensive

复数：extensions