necessity
UK [nə'ses.ɪ.ti] US [-ə.tˌi] noun
uncountable
■the need for something 必要，需要•You can come early if you want to, but there's no necessity for it.如果你愿意，可以早点儿来，但不是非早来不可。 •[+ to infinitive] Is there any necessity to reply to her letter?有必要给她回信吗? •The report stresses the necessity of eating plenty of fresh fruit and vegetables.这份报告强调大量食用新鲜水果及蔬菜的必要性。 •With a personal fortune of six million pounds, she certainly doesn't work out of necessity (= because she needs to).她有600万英镑的身家，当然不是为了生计而工作。 •We'll employ extra staff to help out as and when the necessity arises (= when we need to).需要的时候我们会另聘雇员工帮忙。 countable
■something that you need, especially in order to live 必需的东西；（尤指）生活必需品•We brought only the bare necessities with us.我们只带了基本的必需品。 •He regarded music as one of life's necessities.他把音乐视作生活中不可缺少的东西之一。
UK [nə'ses.ɪ.ti] US [-ə.tˌi] noun
Necessity is the mother of invention. saying
■an expression which means that if you really need to do something, you will think of a way of doing it 需要乃发明之母。 |