extension

• 名词，指延长、扩展或补充某物的行为，也指起延长作用的附加部分。

A noun referring to the act of making something longer, larger, or more comprehensive, or an additional part that extends something.

1. Additional timeB1formal

   An extra period of time allowed for something to be completed.

   延期

   • The teacher gave us a one-week extension on the assignment.
   • He requested an extension for filing his taxes.
   • The deadline extension was granted due to unforeseen circumstances.

   同义词defermentdelayextra timemoratoriumpostponementreprievestay

2. Additional partB1formal

   A part that is added to something to enlarge or prolong it.

   附加部分

   • They built an extension to their house to add a new bedroom.
   • The phone has an extension cord for reaching distant outlets.
   • The company opened a new extension of its office in the city center.

   同义词add-onadditionadjunctappendageattachmentextrasupplement

3. B1formal

   A secondary telephone line connected to the main line.

   分机

   • Please call me on extension 204.
   • She dialed the extension number to reach the sales department.
   • The hotel room has a direct extension to room service.

4. B2formal

   The range or scope of something, such as an idea or influence.

   范围

   • The extension of the law covers all citizens.
   • The research explores the extension of human knowledge.
   • The extension of the project's impact was greater than expected.

   同义词ambitbreadthcompassextentrangereachscopespansweep