usefulness什么意思？

There are doubts about the usefulness of these tests.这些试验是否有用，人们有所保留。I was persuaded of the usefulness of his new device.我相信了他的新装置的实用性.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....

Usefulness includes the fact the negatives have been calibrated.所谓有用,是指在底片上要有标度.The theory is of limited usefulness.这个理论用途有限。The report is of potential usefulness to the government.这个报告可能对政府有用。There are doubts about the ...

usefulness的音标：usefulness的英式发音音标为：['ju:sfəlnəs]usefulness的美式发音音标为：['jusfəlnɪs]...

almsman的复数形式为：almsmen...

“蓝本”的近义词/同义词：底本, 原本。...

大多数蝙蝠靠回声定位来飞行。Most bats navigate by echolocation.她在山顶上大声喊着,然后聆听着回声.She shouted on the mountaintop and listened for the echo.蝙蝠用一种回声测定法来判断距离.The bat judges distances by a kind of echo - location....

“削球”的拼音为：xiāo qiú...

We post up a set of rules for the house.我们张贴了一份房屋生活守则。Many literary academics simply parrot a set of impressive-sounding phrases.许多文人只是机械地模仿一套听上去令人印象深刻的说法。The Companies Act lays down a set of minimum requirements.《公司法》规定...

cicinnus的音标：cicinnus的英式发音音标为：[sɪ'sɪnəs]cicinnus的美式发音音标为：[sɪ'sɪnəs]...

结婚二十年里，他只像样地度过两次假。In twenty years of mar-riage he has only taken two proper vacations.委员会的结论将十年来的否认和掩饰无情地揭开。The commission's conclusions sweep away a decade of denials and cover-ups.20世纪80年代是有史以来最热的十年。The 1980s were...

anticorrosion的音标：anticorrosion的英式发音音标为：[ænti:kə'rəʊʒn]anticorrosion的美式发音音标为：[æntikə'roʊʒn]...

obviating的音标：...

I don't grovel to anybody...我对谁都不会卑躬屈膝。I don't grovel to anybody.我对谁都不会卑躬屈膝。Don't grovel — stick up for yourself!你别卑躬屈膝──要自卫!Speakers have been shouted down, classes disrupted, teachers made to grovel.发言人的...

RMB的音标：...

“荒谬”的英语可以翻译为：absurd，preposterous，absurdity，absurdness，boloney ...

n.（鸟的）绒羽( down的名词复数 )，绒毛，软毛，汗毛v.放下( down的第三人称单数 )，（尤指大口或快速地）喝下，使摔倒，击落（敌机等）...

industrialize的一般过去时为：industrialized...

encash的音标：encash的英式发音音标为：[ɪn'kæʃ]encash的美式发音音标为：[]...