| 单词 | useful |
| 释义 | useful¹ 1.(helpful, beneficial)有用的；可用的；有助益的 to be useful to sb对某人有用 All this information will be useful to chief constables.所有这些信息对郡警察局局长都会有用。 to be useful for sb对某人有用 This chapter will be useful for students and experts alike.这一章对学生及专家等都有益处。 to be useful for sth对…有用 Household bleach is useful for stains on white cotton and linen.家用漂白剂对白棉布及亚麻布上的污渍很有效。 to be useful for doing sth对做某事有用 Such tests are useful for eliminating candidates who are not up to the job.这类测试对去除不符合工作需求的人选很有用。 it is useful to do sth做某事有用 It is useful to keep a diary.记日记有用。 it is useful for sb to do sth某人做某事有用 It might be useful for us to be able to get in touch with you.我们如果能够联系上你可能有用。 2.<英,非正式>(capable)值得赞扬的；非常得力的；颇为成功的 3.to come in useful有用；派得上用场 A hire car would come in useful.租一辆车会派得上用场。 useful²<澳,非正式>打零工的人；干杂活的人 |
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