/ˈju:sfl ||; ˈjusfəl/adj
having some practical use; helpful 有用的;实用的;有益的:
a useful tool有用的工具useful advice有益的建议 ➔usefully /-fəli ||; -fəlɪ/ adv➔usefulnessnoun [U]
come in useful to be of practical help in a certain situation 有实际帮助;派上用场:
Don't throw that box away -- it might come in useful for something.不要把那箱子扔掉─也许还能派上什么用场呢。
useful/ˋjusfəl; ˈjuːsf$l/adj something that is useful helps you to do or get what you want [ useless ] 有用的﹐有帮助的: a useful book for travellers 一本对旅行者有用的书+for Trade fairs are useful for meeting new clients. 交易会对结识新客户很有用。It's useful to make a list before you start. 先列一个表再动手是很有帮助的。His knowledge of Italian was to come in useful (=be useful) later on. 他学的意大利语后来派上了用场。—usefully adv —usefulness n [U]