drain

詳細解釋：

drain

v.（動詞）
drained,drain.ing,drains
v.tr.（及物動詞）
To draw off (a liquid) by a gradual process:
排出：漸漸地放掉液體：
例句：
drained water from the sink.
將水從污水槽中排掉

To cause liquid to go out from; empty:
排乾：使液體流掉；排空：
例句：
drained the bathtub; drain the pond.
放掉浴池的水；排淨水塘的水

To draw off the surface water of:
排乾表面的水：
例句：
The Mississippi River drains a vast area.
密西西比河枯竭了一大片區域

To drink all the contents of:
喝光：喝乾內容物：
例句：
drained the cup.
乾杯

To deplete gradually, especially to the point of complete exhaustion.See Synonyms at deplete
耗盡：逐漸耗盡，尤指消耗直至完全枯竭參見 deplete
To fatigue or spend emotionally or physically:
消耗：使在情感上或肉體上疲勞或消耗：
例句：
The day`s events completely drained me of all strength.
這天的事情使我精疲力竭

v.intr.（不及物動詞）
To flow off or out:
排出：流掉或流出：
例句：
Gasoline drained slowly from the tilted can.
煤油慢慢從傾斜的油罐里流出來

To become empty by the drawing off of liquid:
變乾：因液體流淨而變空：
例句：
watched the tub slowly drain.
看著浴缸慢慢排空

To discharge surface or excess water:
注入：排走地面上的或多餘的水：
例句：
The Niagara River drains into Lake Ontario. When flooded, the swamp drains northward.
尼加拉河流入安大略湖。發洪水時，沼澤向北泄水

To become gradually depleted; dwindle:
枯竭：被逐漸耗盡；減少：
例句：
felt his enthusiasm draining.
感到他的熱情漸漸消失

n.（名詞）
A pipe or channel by which liquid is drawn off.
排水管：排掉液體的管或通道
Medicine A device, such as a tube, inserted into the opening of a wound or body cavity to facilitate discharge of fluid or purulent material.
【醫學】 引流管：插入傷口或體腔，以便排出液體或膿狀物的裝置，如管子
The act or process of draining.
排放：排去液體的行為或過程

A gradual outflow or loss; consumption or depletion:
流出：逐漸地流出或失去；消耗或耗盡：
例句：
the drain of young talent by emigration.
移民導致的青年人才流失

Something that causes a gradual loss:
消耗的東西：造成逐漸流失的東西：
例句：
interruptions that are a drain on my patience.
使我喪失耐心的插話

<習慣用語>down the drain
To or into the condition of being wasted or lost:
處於被浪費或丟失狀態：
例句：
All of our best laid plans are down the drain.
我們所有精心布置的計畫都付之東流

來源：
Middle English dreinen [to strain, drain]
中古英文 dreinen [拉，排出]
from Old English drôahnian
源自 古英文 drôahnian

【引伸】
drain.able
adj.（形容詞）
drain.er
n.（名詞）