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]...

The airline plans to auction its international routes to former competitors.这家航空公司打算把他们的国际线路拍卖给以前的竞争对手。Two of his biggest competitors are out of the ball game.他的两大劲敌出局了。The competitors had to contend with squally weather...

“长外裙”的拼音为：cháng wài qún...

See to it that you are here punctually tomorrow.明天你务必要准时到这里.See to it that you're ready on time!请务必按时准备好!You must see to it that all the goods measure up to the specifications.你们得保证所有商品都符合规格....

To menses, what omen is occurrence dust - colour leucorrhoea?到月经期, 出现的灰褐色白带是什么征兆?Can suffer excessive internal heat cause leucorrhoea to bleed?上火会引起白带出血 吗 ?Did leucorrhoea become yellow get disease of department of gynae...

commemorate的一般过去时为：commemorated...

“忠告”的近义词/同义词：警告, 忠言, 规戒, 针砭, 箴规, 规谏, 劝阻。...

By pushing aside unpleasant thoughts they merely repress these thoughts.他们对不愉快的想法不予理会，其结果仅仅是压制了这些想法。I couldn't repress a sigh of admiration.我忍不住发出一声赞叹。People who repress their emotions risk having nightmares.压抑情感的人容...

That charlatan! I lost thousands of dollars because I followed his advice.那个骗子! 听了他的话,我损失了好几千美元.He was exposed as a charlatan.他被揭穿，原来是个骗子。He was sure that he was dealing with a charlatan.他真以为自己遇上了江湖骗子....

The bad weather precluded me from attending the meeting.恶劣的天气使我不能出席会议.Because the transcript is still under seal, I am precluded by law from discussing the evidence.副本仍未公开，按照法律规定我不能讨论这项证据。Her independence and maverick be...

antiophidica的音标：antiophidica的英式发音音标为：[æn'taɪɒfɪdɪkə]antiophidica的美式发音音标为：[æn'taɪɒfɪdɪkə]...

n.巨牙...

“苷配基”的英语可以翻译为：aglycone，genin ...

If bricks or wooden walls are treated but unpainted they look beautiful.墙面经过打磨(刮大白)但不喷色漆看起来会很漂亮.RUST unpainted metal tools were covered with rust.未上漆的金属工具布满了锈.Unpainted wooden furniture weathers to a grey colour...没有上漆的木...

lipidase的音标：lipidase的英式发音音标为：[lɪ'pɪdeɪz]lipidase的美式发音音标为：[lɪ'pɪdeɪz]...

趾缓步亚目...