单词	exhaust
释义	verb | noun exhaustexhaust1 /ɪgˈzɔst/ ●○○ verb [transitive] Etymology ETYMOLOGYexhaust1 Origin: 1500-1600 Latin exhaustus, past participle of exhaurire, from haurire to draw off liquid, drain Verb Table VERB TABLE exhaust Simple Form Present I, you, we, they exhaust he, she, it exhausts Past I, you, he, she, it, we, they exhausted Present perfect I, you, we, they have exhausted he, she, it has exhausted Past perfect I, you, he, she, it, we, they had exhausted Future I, you, he, she, it, we, they will exhaust Future perfect I, you, he, she, it, we, they will have exhausted Continuous Form Present I am exhausting he, she, it is exhausting you, we, they are exhausting Past I, he, she, it was exhausting you, we, they were exhausting Present perfect I, you, we, they have been exhausting he, she, it has been exhausting Past perfect I, you, he, she, it, we, they had been exhausting Future I, you, he, she, it, we, they will be exhausting Future perfect I, you, he, she, it, we, they will have been exhausting Collocations COLLOCATIONS► exhaust a supply/stock/reserve  We are in danger of exhausting the world’s oil supply. ► exhausted the possibilities  We haven’t yet exhausted the possibilities of the technology. 1to make someone very tired:  The trip totally exhausted us.it exhausts somebody to do something It exhausts me to think of all the things I have to do before the move.2to use all of something: exhaust a supply/stock/reserve We are in danger of exhausting the world’s oil supply.3to try all the possible options in a situation so that there is nothing left to try:  We haven’t yet exhausted the possibilities of the technology.4exhaust a subject/topic to talk about something so much that you have nothing more to say about it:  Well, it looks like we’ve exhausted that topic. Let’s move on to the next question. [Origin: 1500–1600 Latin exhaustus, past participle of exhaurire, from haurire to draw off liquid, drain] verb | noun exhaustexhaust2 ●○○ noun 1 [uncountable] science the gas or steam that is produced when a machine is working2the exhaust (also the exhaust system) the parts of a car or machine that exhaust passes through as it leaves the engine
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