| 释义 |
usefulness
[英] [ˈju:sfəlnəs]
[美] [ˈjusfəlnɪs]
[名] 有用；可用性；实用
词频排名 23086/55435
学习人数 380
难度等级 10/10
认知比例 77.30%
例句
Many advertisements exaggerate the usefulness of the products.
很多广告都夸大了产品的效用。
Many people think the system has outlived its usefulness.
许多人认为该系统已经不再有用了。
the usefulness of useless knowledge
无用之学的有用性
助记
词根
useful有用的+ness，名词形式
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