音标：[drein]
n. 排水沟, 消耗, 排水
vt. 排出, 喝光, 耗尽
vi. 排水, 流干
【化】 排放口
【医】 引流管, 引流物, 排水沟, 泄水, 排水, 引流, 导液
相关词组:
down the drain
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drain的短语、例句：

drain n 1 pipe or channel that carries away sewage or other unwanted liquid 下水管; 下水道; 阴沟
We had to call a plumber to unblock the drains. 我们得叫管工来通一通下水道. =>illus at App 1 见附录1之插图, page vi. 2 (US) = plug-hole. 3 (idm 习语) (go) down the `drain (infml 口) be wasted or spoilt 被浪费; 白费
A single mistake and all that time and money would go down the drain. 只要发生一个错误, 全部的时间和金钱就将尽付东流. a drain on sb/sth anything that continuously uses up sb´s strength, time, money, etc 消耗精力、 时间、 金钱等的事物
Military spending is a huge drain on the country´s resources. 军费开支是国家资源的一大消耗. laugh like a drain => laugh. drain v 1 [I, Ipr, Ip, Tn, Tn.pr, Tn.p] ~ (sth) (from sth); ~ (sth) (away/off) (cause liquid to) flow away （使液体）流走
All the blood drained from his face, eg on hearing bad news. 他面无人色（如听到坏消息）.
The bath-water slowly drained away. 浴池的水慢慢排走.
The mechanic drained all the oil from the engine. 机械工将发动机中的油全部放走. 2 [Tn, Cn.a] empty (a glass, etc) 喝光, 喝乾（杯...中的饮料）
drain one´s glass dry 把杯中饮料喝光. 3 [I, Tn] (cause sth to) become dry as liquid flows away （使某物）流乾, 滴乾
Leave the dishes to drain. 让碟子控乾.
drain swamps/marshes 排乾沼泽地的水
Land must be well drained for some crops. 某些作物要求土地有良好的排水性能. 4 [Tn, Tn.pr] ~ sb/sth (of sth) (fig 比喻) make sb/sth weaker, poorer, etc by gradually using up his/its strength, money, etc 消耗或耗尽某人[某物]的精力、 金钱等
feel drained of energy 觉得精疲力竭
a country drained of its manpower 耗尽人力的国家. 5 (idm 习语) drink/drain sth to the dregs => dregs. 6 (phr v) drain away (fig 比喻) gradually disappear or fade 逐渐消失或消退
Her life was slowly draining away, ie She was dying. 她的生命力在慢慢枯竭（她快死了）.