单词	drain
释义	verb | noun draindrain1 /dreɪn/ ●●○ S3 verb Etymology ETYMOLOGYdrain1 Origin: Old English dreahnian Verb Table VERB TABLE drain Simple Form Present I, you, we, they drain he, she, it drains Past I, you, he, she, it, we, they drained Present perfect I, you, we, they have drained he, she, it has drained Past perfect I, you, he, she, it, we, they had drained Future I, you, he, she, it, we, they will drain Future perfect I, you, he, she, it, we, they will have drained Continuous Form Present I am draining he, she, it is draining you, we, they are draining Past I, he, she, it was draining you, we, they were draining Present perfect I, you, we, they have been draining he, she, it has been draining Past perfect I, you, he, she, it, we, they had been draining Future I, you, he, she, it, we, they will be draining Future perfect I, you, he, she, it, we, they will have been draining Collocations COLLOCATIONS► well/poorly etc. drained  Carrots grow best in well-drained soil. ► drained away  Suddenly all her anger drained away. 1LIQUID a)[intransitive, transitive] if liquid drains, or you drain it, it flows out of a container: drain something from something Brad drained all the oil from the engine.drain away/off After the floodwaters drained away, Shahar returned to her village. b)[intransitive, transitive] if a container, area, object, etc. drains or you drain it, all the liquid flows out of or off it:  Open ditches drain very efficiently. They drained the pond in order to search the bottom.well/poorly etc. drained Carrots grow best in well-drained soil.2MAKE TIRED [transitive] to make someone feel very tired:  Listening to customers’ complaints all day really drains me.3USE TOO MUCH [transitive usually passive] to use too much of something so that there is not enough left:  Over $15 million a year is being drained from federal resources.be drained of something Parents can become so drained of energy that they just give up.4FEELING if a feeling drains away from you, it is reduced until you don’t feel it anymore:  Suddenly all her anger drained away.5the color/blood drains from somebody’s face used to say that someone becomes very pale, usually because he or she is frightened or shocked:  All the blood drained from Wilson's face as the verdict was read.6drain a glass/cup etc. to drink all the liquid in a glass, cup, etc.:  Lori quickly drained her cup.[Origin: Old English dreahnian]drain something off phrasal verb to make all the water or a liquid flow off something:  Drain off the fat from the meat after frying. verb | noun draindrain2 ●●○ noun [countable] 1a pipe or hole that dirty water or waste liquids flow into:  The drain in the bathtub is clogged.2a drain on something something that continuously uses time, money, strength, etc.:  Owning this boat is a big drain on my finances.3down the drain informal a)wasted or having no result:  Well, there’s another 50 dollars down the drain. b)go down the drain if an organization, country, etc. goes down the drain, it becomes worse or fails → see also brain drain
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