Extension
01
a mutually agreed delay in the deadline for completing a task or paying a debt
例子
The contractor requested an extension for finishing the project.
The bank granted an extension on the loan repayment.
02
the act of expanding in scope, range, or availability
例子
The company planned an extension of its product line.
Extension of internet coverage reached rural areas.
03
the spreading of an idea, practice, or belief into new regions or areas
例子
The extension of democracy reshaped the region.
Religious extensions influenced local customs.
04
educational programs provided by colleges or universities to non-regular students
例子
She enrolled in a university extension course in creative writing.
The extension program offers evening classes for working adults.
05
the act of straightening a flexed limb
例子
Knee extension is essential for walking and running.
The physiotherapist measured elbow extension during rehabilitation.
06
an addition that increases the size of a building
Dialect
British
British
例子
They built a rear extension to enlarge the kitchen.
The office received a two-story extension.
07
延长, 延期
a period of time added to something to prolong it
例子
The professor granted an extension on the deadline for the research paper due to unforeseen circumstances.
由于 unforeseen circumstances，教授批准了研究论文截止日期的延长。
The company announced an extension of the sale, allowing customers more time to take advantage of discounted prices.
公司宣布延长销售时间，让客户有更多时间享受折扣价。
08
分机, 扩展
an extra telephone connected to the main phone line in a house
例子
She picked up the extension in the bedroom to answer the call while her husband spoke on the main line.
她在卧室拿起分机接听电话，而她的丈夫在主线上说话。
He dialed the extension to reach his colleague in the neighboring cubicle.
他拨打了分机以联系隔壁隔间的同事。
09
延长, 扩展
an amount that is added to something
例子
They built an extension on their house to add a new bedroom.
他们在房子上建了一个扩建部分以增加一个新卧室。
The professor gave me an extension to finish my paper.
教授给了我一个延期来完成我的论文。
10
the ability to lift or raise the working limb high in the air
例子
The choreographer emphasized high leg extension.
Leg extension is a key exercise in gymnastics.
11
the set of all objects or entities to which a term or expression correctly applies
例子
The extension of " bird " includes all creatures classified as birds.
Mathematicians discuss the extension of a function.
12
扩展名
a string of characters that comes after a period in a computer filename, typically indicating the file type or format
例子
".pdf " is a common file extension used for documents that preserve formatting across different platforms.
.pdf是一种常见的文件扩展名，用于保留不同平台上文档的格式。
The ".mp3 " extension indicates that the file contains audio data.
.mp3 扩展名表示该文件包含音频数据。
13
a phone line within a larger system, connected to a central line and assigned its own number
例子
Please call my extension at the office; it's 214.
The receptionist transferred the client to the manager 's extension.
词汇树
coextension
extensional
hyperextension
extension
extend
