utility

功利主义强调最大化总体效用。

Utilitarianism emphasizes maximizing overall ___utility.

这个实用程序可以清理电脑中的临时文件。

This ___utility can clean temporary files on your computer.

这款软件的实用性在于它能同时处理多项任务。

The ___utility of this software lies in its ability to handle multiple tasks at once.