n. 1.有用，有益；实用，【经济学】效用；功利；〔常 pl.〕 有用的东西。 2.【哲学】功利主义。 3.【戏剧】跑龙套的[演配角的]演员。 4.〔美国〕公用事业 (＝ public utility) 〔pl.〕 公用事业股票。 marginal utility 【经济学】边际效用，限界效用。 of no utility 没用的，无益的。 adj. 1.多用途的，各种工作都会做的，通用性的。 2.实用的，经济实惠的。 3.(牲畜)为谋利而饲养的〔不是为了玩赏的〕。 4.公用事业的，公用事业公司股票价格的。
the service (electric power or water or transportation) provided by a public utility; "the cost of utilities never decreases"; "all the utilities were lost after the hurricane"
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"
the quality of being of practical use 同义词：usefulness,
(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" 同义词：utility program, service program,
a company that performs a public service; subject to government regulation 同义词：public utility, public utility company, public-service corporation,
(economics) a measure that is to be maximized in any situation involving choice
capable of substituting in any of several positions on a team; "a utility infielder" 同义词：substitute,
used of beef; usable but inferior 同义词：utility-grade,
In economics, utility is a representation of preferences over some set of goods and services. Preferences have a (continuous) utility representation so long as they are transitive, complete, and continuous.
例句与用法
1.
Utility bills didn't amount to much . 公用事业的费用有限。
2.
Utility companies could install and maintain them . 公用事业公司可以安装并保养它们。
3.
It is the purpose of soliciting funds from utility employees . 目的是向公司的雇员募捐。
4.
The utility was entering new and uncharted territory . 公司进入了一个陌生的、未知的领域。
5.
This is not the end of the utility of the particle concept . 粒子概念的应用并非到此为止。
6.
Some municipalities operate their own public utilities . 有些城市自行经营自己的公用事业。
7.
This does not, however, detract from the utility of the terms . 但这并不妨碍使用这些术语。
8.
Not so long ago utility bills didn't amount to much . 没多久以前，用于公用事业的费用很有限。
9.
This ware is suitable for decorative purpose but unsuitable for utility . 这种器皿中看不中用。
10.
The power utilities will need to quadruple their capacity . 电力事业必须使它们的能力增加三倍。
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