单词：extension
a. 伸缩的
[计] 扩展名, 扩充名
n. act of expanding in scope; making more widely available
n. an educational opportunity provided by colleges and universities to people who are not enrolled as regular students
n. act of stretching or straightening out a flexed limb
考试类型：[高考/四级/六级/考研/托福/IELTS]
extension的用法和样例：
例句
- 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？
- His leg was now capable of full extension.他的腿现在能够伸展自如了。
- He asked for an extension of his visa.他申请延长签证有效期。
- We built an extension to our house.我们扩建了我家的房屋。
- 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。
- 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。
- There are telephone extensions in every office.每间办公室都有电话分机。
- 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。
- 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。
常见句型
- They have built an extension to the hospital.他们扩建了这家医院。
- The pupils disliked the extension of the term.小学生们不愿延长学期。
- The extension is nearly finished.扩建部分已近完工。
- The extension is 8010.分机号码是8010。
词汇搭配
- 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
经典引文
The metaphor of the psychic voyage is an extension of the romantic idea of travel.
出自：S. Sontag
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