utility
英 [juːˈtɪləti]
美[ju'tɪləti]
	    - n. 实用;效用;公共设施;功用
 - adj. 实用的;通用的;有多种用途的
 
英英释意
- 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"