demand /diˈmɑ:nd/ I.vt. 1.要求，请求（跟名词或代词、不定式和带虚拟语气的从句）：［考句］We know through painful experience that freedom is never by the oppressor; it must be demanded by the oppressed.痛苦的经验使我们认识到自由不是压迫者给予的，自由必须是受压迫者自己要求而得到的。She demanded to see you.她要求见你。He demanded to be paid. 他要求付款。I demand that one of you (should) go there at once. 我要求你们中有一人立即到那里去。2.查问：The policeman demanded the boy’s name.警察询问男孩的名字。 3.需要：This work demands care. 这工作要细心。‖II. n.［c］需要，要求：demand and supply 需求This work makes too great a demand on my time. 这一工作要花费我很多时间。The store refused to meet the customer's demand for a refund.商店拒绝顾客要求退款的要求。The demands of the job became too much for him.他非常需要这份工作。 on demand 一经要求：A combination boiler provides hot water on demand.复式炉可以随时供应热水。He promised us endless coffee on demand.他答应保证随时供应我们咖啡。in demand需求：This instrument is in great demand. 这种工具需求颇多。
demanding /diˈmændiŋ/ adj. 很费心的，很努力的：This job is very demanding.这个工作很是费力。She has a busy and demanding job.她的工作既繁忙又费力。
