extension

US /ɪkˈsten.ʃən/
UK /ɪkˈsten.ʃən/
"extension" picture
1.

延长, 扩建

the act of making something longer or larger

:
The company announced an extension of its warranty period.
公司宣布延长保修期。
We requested an extension to submit the report.
我们请求延长提交报告的时间。
2.

扩建部分, 延长线

a part that is added to something to make it longer or larger

:
The house has a new extension at the back.
房子后面有一个新的扩建部分
She used an electrical extension cord to reach the outlet.
她用电延长线够到插座。
3.

分机, 电话分机

a telephone connected to the main line but having a different number

:
Please dial extension 205 for customer service.
请拨打分机205联系客户服务。
I'm on extension 312.
我的分机是312。