extension

复数：extensions

1. [U]延伸,扩展 (an example of) the act of extending or being extended
2. [C]增加部分 a part which is added to make sth longer, wider, or larger
3. [C]电话分机 any of many telephone lines which connect various rooms or offices in a large building to the switchboard

• ask for〔request〕 an extension要求延期
• get〔receive〕 an extension得到延期
• grant an extension批准延期

• three-month extension三个月的期限
• two-room extension扩建了两间屋
• further extension进一步延长

• business extension分店营业所
• pedal extension踏板的接长节
• railway extension铁路的延长部分
• telephone extension电话分机
• time extension延长时间

• extension ladder伸缩梯
• extension number分机号
• extension spring弹簧

• extension of time limit时限的延长
• extension to the hospital医院的扩建

brand extension品牌延伸

by extension相关地；引申开来

extension service推广服务

crack extension裂纹扩展；裂纹扩张

extension set分机；增设装置

research and extension研究与推广

extension number分机号码

extension of time延期；延长时间；延长合约期

file extension文件扩展名；档案延伸

extension methods扩展方法

university extension大学附校；大学推广教育

extension spring拉簧；牵簧，牵引簧；拉伸弹簧

extension line延长线；分机线；引出线

time extension时间延长

credit extension援权（信用状期限延长）

extension cord延长线；分机线绳

hair extension接发

elastic extension弹性伸长；弹性延伸

extension telephone n. 电话分机

1. This cord is not long enough! do you have an extension?
   这条绳子不够长！你有长一点的吗？
2. His leg was now capable of full extension.
   他的腿现在能够伸展自如了。
3. He asked for an extension of his visa.
   他申请延长签证有效期。
4. We built an extension to our house.
   我们扩建了我家的房屋。
5. He sees local history as an extension of family history.
   他认为当地的历史是每个人家庭历史的发展。
6. The country decided to have an extension of government control on the market.
   该国决定对市场加强政府监管。

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

1. Method will only return one unique file name per file name extension.
   方法对每个文件名扩展名只返回一个唯一文件名。
2. You can optionally filter the list by extension and keyword contained inthe file name, and also choose to include sub-directories.
   你可以按照包含在文件名当中的扩展名和关键字有选择地过滤列表，并且还可以选择包括子目录。