期望效用的英文：
expected utility
adj. 预期的
v. expect的过去式和过去分词
The children waited patiently in expectation of(ie expecting)the magician.
孩子们耐心地等待着魔术师.
Do you expect company for the weekend?
这个周末你家有客人吗？
Expectation is better than realization.
期待比实现更美好。
Expectation is better than realization.
期待总比现实美。
It was a hope rather than an expectation.
此仅为希望多于预期而已。
n. 公共设施；公共事业；实用，效用
adj. 实用的；通用的；多用途的
the utility value of a dishwasher
洗碟机的实用价值.
He is a utility infielder.
他是个能攻善守的内场手。
This is a good utility chapter.
是一个很实用的章节。
Utility is a mconception in microeconomics.
效用是微观经济学的一个概念。
a public utility providing local transportation.
提供本地运输的公用事业。