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

• In fact, men are outliving their usefulness.
  事实上，人已经过时了，无用了。
• 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。
• But he was doubtful about the usefulness of the research.
  但是他对该研究的用处表示怀疑。
• After its usefulness in other domains was realized, it was redesigned as a general scientific data visualizer.
  当人们认识到它在其他领域中的效用之后，它就作为一种通用科学数据可视化工具重新进行了设计。
• The ② integrity control: Accuracy, usefulness and compatibility of assurance data;
  ②完整性控制：保证数据的正确性、有效性和相容性；
• The value of network supervision is to protect the Internet's usefulness for people.
  网络监管的价值在于保护互联网对人的有益性。
• Experimental results of aberration measurements of two lenses are given to verify the usefulness of the setup.
  给出两个聚焦镜的像差测量结果，验证了该装置的有效性。
• An application example demonstrates the usefulness and effectiveness of this technique.
  本文最后给出了一个实测，以说明方法的应用和有效性。
• The machine had outlived its usefulness.
  这机器已无用了。
• Man early learned the usefulness of weapons.
  人类很早以前就知道了武器的用处。