extender

n.增量剂；扩充器；延长器

It is a barbarous way to extend territory by arms. 以武力扩张领土是一种野蛮的方式。

A proposal to extend the highway was flung out at the meeting. 延伸高速公路的建议在会议上被否决。

Jim didn't really have to extend himself in the examination. 吉姆这次考试大可不必那么拼命。

I will like to extend a warm welcome to you on behalf of our fair. 我代表本次交易会向你们表示热烈的欢迎。

I would like to extend a warm welcome to our visitors. 我想对我们的来访者表示热烈的欢迎。

I extend my heartfelt thanks for your help. 我对你的帮助表示由衷的感谢。

西文字的延伸部分