学习资料

[意       思]adj. 有多种用途的
[例]  a utility knife 多用途小刀
adj. 公共事业的
[例]  utility companies 公用事业公司
n. 效用，实用
[例]  The store deals in objects of domestic utility. 那家商店出售家庭用品。
n. 公用事业
[例]  I found that I had forgotten to pay the bills for utilities. 我发现忘了付水电及煤气的费用。

更多意思

n.1.  公共事业
2.  实用，效用
3.  [计]应用程序

参考例句

1.	It has ceased to have practical utility .
	它已不再实用。
2.	It is of its highest economic utility .
	它的实用令人怀疑。
3.	Its utility is incontestable.
	他的效用的无可否认的。
4.	It will be found of great utility by its users.
	用户将发现它极为有用。
5.	We may begin with an analysis exactly parallel to that of our utility theory.
	我们或许可从与我们的效用理论完全相似的分析开始。