usefulness

英 [ˈjuːsflnəs]

美 [ˈjuːsflnəs]

n.  有用; 实用; 可用性

经济

BNC.8593 / COCA.9891

牛津词典

noun

• 有用；实用；可用性
  the fact of being useful or possible to use
  1. There are doubts about the usefulness of these tests.
     这些试验是否有用，人们有所保留。
  2. The building has outlived its usefulness.
     这座楼房已超过使用年限了。

柯林斯词典

• ADJ-GRADED 有用的；可用的；有助益的
  If something isuseful, you can use it to do something or to help you in some way.
  1. The slow cooker is very useful for people who go out all day...
     慢炖锅对于整天都不在家的人来说很有用。
  2. Hypnotherapy can be useful in helping you give up smoking...
     催眠疗法可能有助于你戒烟。
  3. The police gained a great deal of useful information about the organization.
     警方收集到了大量关于该组织的有用信息。
• PHRASE 有用；派得上用场
  If an object or skillcomes in useful, it can help you achieve something in a particular situation.
  1. The accommodation is some distance from the clubhouse, so a hire car comes in useful.
     住处离会所有一段距离，所以租一辆车会很有用。

英英释义

noun

• the quality of being of practical use
  Synonym:utility

双语例句

• But it may have a number of tests that have outlived their usefulness.
  但是可能有许多测试的生命长过其有效时期。
• You are past your usefulness to me.
  你已经对我没有任何价值了。
• The usefulness of this system for arteriovenous malformation ( AVM) surgery was evaluated prospectively.
  此系统在动静脉畸形（AVM）手术中的作用已获得前瞻性评价。
• Develop architectural descriptions iteratively, constantly reviewing their correctness and usefulness.
  迭代地描述架构，经常检查并确保它的正确性及有效性。
• Many people think the system has outlived its usefulness.
  许多人认为该系统已经不再有用了。
• We are experimenting with the language and our group is very positive about the usefulness of Ruby.
  我们尝试了这种语言，我们的团队非常欣赏Ruby的实用性。
• The UN is an organisation which has long since outlived its usefulness
  联合国是一个早已形同虚设的机构。
• Remember to balance the relevance and usefulness of the article with your desire to stay in touch.
  记住要根据你对保持联系的愿望来权衡文章的相关性和实用性。
• But the research casts doubt on the usefulness of such products.
  但是，一项最新研究却对这些食品的有效性提出了置疑。
• But the usefulness of the analysis was often questioned by economists.
  但这种分析的实用性常常遭到经济学家的质疑。