• 词性及解释
  n. 延长, 扩充, 范围, 扩展名
  a. 伸缩的
  【计】 扩展名, 扩充名
  【化】 伸长
  【经】 延期
• 例句
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• 相关词条
  outside extension extension shaft extension plate uniform extension quadratic extension extension subscriber extension division complex extension extension tube extension class extension elongation extension steel extension name extension theorem extension base extension contracture extension fixture extension instrument extension circuit unramified extension extension ringer boom extension

n.
1. 伸展;伸长;扩大[U][(+of)]
the extension of our foreign trade
扩大我们的对外贸易
2. 延长;延期;缓期[U][C]
We had hoped for the extension of the deadline to the end of the week.
我们曾希望把最后期限延至周末。
3. 延长部分;扩大部分;增设部分[C]
We built an extension to our house.
我们扩建了我家的房屋。
4. 电话分机[C]