useful

1He offered some useful advice.他提出了一些有益的建議。《牛津詞典》

2Photos make useful teaching aids.照片可以成為有用的教具。《牛津詞典》

3My mobile phone is extremely useful.我的手機極為有用。《柯林斯英漢雙解大詞典》

4Overall, this is a very useful book.總的來説，這是一本很有用的書。《牛津詞典》

5This information could prove useful.這條信息往後也許有用。《牛津詞典》

6In business a poker face can be very useful.在生意場上，不露聲色會非常有用的。《柯林斯英漢雙解大詞典》

7The research has yielded useful information.這項研究提供了有用的資料。《牛津詞典》

8I've made some useful contacts in journalism.我在新聞界結交了一些有用的人。《牛津詞典》

9Videoing students can be a useful teaching exercise.給學生錄像可以成為有用的教學活動。《牛津詞典》

10This technique is useful but it has its limitations.這種技術實用，但也有侷限性。《牛津詞典》

11Some drugs kill off useful bacteria in the user's body.某些藥物會殺死服用者體內的有益細菌。《牛津詞典》

12Hypnotherapy can be useful in helping you give up smoking.催眠療法在幫助你戒煙方面可能有用。《柯林斯英漢雙解大詞典》

13The tourist office operates a useful room-finding service.這個旅遊辦事處開辦了實用的找房業務。《柯林斯英漢雙解大詞典》

14It was a collaboration that produced extremely useful results.這是一次帶來極其有益的成果的合作。《牛津詞典》

15From this chastening experience he learned some useful lessons.從這次懲戒性的經歷中，他得到了一些有用的教訓。《柯林斯英漢雙解大詞典》

16The memory expansion cards are useful adjuncts to the computer.內存擴充卡是計算機很有用的附件。《牛津詞典》

17It was certainly useful to have her there to chauffeur him around.有她在那兒為他開車肯定是有用的。《柯林斯英漢雙解大詞典》

18The document provided a springboard for a lot of useful discussion.這份文件引發出許多有益的討論。《牛津詞典》

19The drug will be useful to hundreds of thousands of infected people.這種藥物將會對成千上萬感染者有用。《柯林斯英漢雙解大詞典》

20All of these are useful breeds whose potentiality has not been realized.所有這些都是有益的品種，其潛力尚未被認識到。《柯林斯英漢雙解大詞典》

21"For heaven's sake!" Dot expostulated. "They're cheap and they're useful."“看在老天的份上！”多特反駁道。“他們便宜而且他們有用。”《柯林斯英漢雙解大詞典》

22Painkillers are very useful in small amounts to bring your temperature down.小劑量的止痛藥對於降低體温非常有用。《柯林斯英漢雙解大詞典》

23They produced two reports, neither of which contained any useful suggestions.他們提交了兩個報告，都沒有任何有用的建議。《牛津詞典》

24The newsletter is a useful channel of communication between teacher and students.發簡訊是溝通師生的有益渠道。《牛津詞典》

25He's a very useful player.他是個很棒的運動員。《牛津詞典》

26He might be useful to us.我們也許用得上他。《牛津詞典》

27Having your own computer is very useful.自己有一台計算機用處很大。《牛津詞典》

28These experiments serve no useful purpose.這些實驗沒有任何實際意義。《牛津詞典》

29Extra blank paper will probably come in useful.額外的空白紙可能用得着。《柯林斯英漢雙解大詞典》

30She has ten years' useful experience behind her.她有十年的經驗，能派上用場。《牛津詞典》 ^[1]