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

• Eventually we decided that the system had outlived its usefulness.
  最后我们决定这个系统已不再有使用价值了。
• Man early learned the usefulness of weapons.
  人类很早以前就知道了武器的用处。
• 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。
• These mistakes sap XML of its power and usefulness.
  这些错误损害了XML的能力和有效性。
• Second, they provide views and consulting to address ease of use and usefulness of the data.
  其次，他们提供见解和咨询，以解决数据易用性和实用性。
• Many people think the system has outlived its usefulness.
  许多人认为该系统已经不再有用了。
• 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。
• The machine had outlived its usefulness.
  这机器已无用了。
• 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。