usefulness的意思

usefulness

英式音标['jʊsfəlnəs]
美式英标['juːsf(ʊ)lnəs]

基本解释

n. 有用；有效性；有益

实用例句

1. 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。

2. There are doubts about the usefulness of these tests.: 这些试验是否有用，人们有所保留。

3. The report is of potential usefulness to the government.: 这个报告可能对政府有用.

4. I was persuaded of the usefulness of his new device.: 我相信了他的新装置的实用性.

5. The index adds appreciably to the usefulness of the book.: 索引明显地增加了这本书的实用价值.

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