单词：usefulness
音标：['ju:sfjlnis] ；
n. 有用, 有益
[经] 有用, 有用性
[经] 有用, 有用性
n the quality of being of practical use
词型变化：名词复数形式 : usefulnesses
词性分布：
usefulness的用法和样例：
例句
用作名词(n.)
- It is of the greatest usefulness.它是极有用的。
- This toolhas even more usefulness than that.这个工具比那个更有用。
- The duality of use value refers to its usefulness and rarity.使用价值的两重性指的是有用性和稀少性。
词汇搭配
- usefulness index实用性指数
- decline in economic usefulness经济效用减低...
【近义词】
- utility效用
- worth价值
- convenience便利
- value价值
- practicality实际
- helpfulness有帮助
- expediency权宜
- efficacy功效
- effectiveness有效性
- handiness巧妙
- advantageousness有利
- suitability适当
【反义词】
单词：usefulness 相关文章
It was known by all that he was a good scholar, and by all that he was respected. 所有人都知道他是一名好学生，都敬佩他。 His father and mother, brothers and sisters, came on the commencement day to hear him speak. 他父母和兄弟姐
发表于:2019-01-17 / 阅读(215) / 评论(0)
美国语文第四册
美国语文第四册
At the opposite extreme 在对待老人的另一个极端 in treatment of the elderly, the happy extreme, 这个快乐的极端， are the New Guinea farming societies 是在新几内亚的农耕社会 where I've been doing my fieldwork for the past
发表于:2019-02-14 / 阅读(253) / 评论(0)
TED演讲科学篇
TED演讲科学篇