久青草国产手机视频免费观看_毛片网站是多少_亚洲视频中文_一区二区高清在线

首頁英語詞典utilityutility英英釋意

utility

英 [ju??t?l?ti] 美[ju't?l?ti]
  • n. 實用;效用;公共設施;功用
  • adj. 實用的;通用的;有多種用途的

英英釋意


1. a company that performs a public service; subject to government regulation
2. the quality of being of practical use
3. the service provided by a utility company;
"the cost of utilities never decreases"
4. (economics) a measure that is to be maximized in any situation involving choice
5. (computer science) a program designed for general support of the processes of a computer;
"a computer system provides utility programs to perform the tasks needed by most users"
6. a facility composed of one or more pieces of equipment connected to or part of a structure and designed to provide a service such as heat or electricity or water or sewage disposal;
"the price of the house included all utilities"