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单词 drain
释义 drain
I. \ˈdrān\ verb
(-ed/-ing/-s)
Etymology: Middle English draynen, from Old English drēahnian, drēhnian; perhaps akin to Old Norse drangr dry log, Frisian drūgen to strain, Old English drȳge dry — more at dry
transitive verb
1. obsolete : to pass (liquid) through some permeable substance : filter
2.
 a. : to draw off (liquid) by degrees : cause to flow gradually out or off : draw off completely (as by means of a drain or trench)
  < drain the water from a tank >
  < waterspouts to drain off the rain >
 b.
  (1) : to cause the gradual disappearance or extinction of
   < fright had drained all color from his face >
   < the urge to conform was slowly draining the boy's individuality >
   : exhaust
   < war had drained the country's treasure and best manhood >
  (2) : vent, discharge
   < drain an undesirable emotion >
   < enabling the patient to drain his deeply repressed anxieties >
  (3) : to exhaust physically or emotionally
   < drained as he was by his session …, he did not feel up to it — Hamilton Basso >
   < matinee days are tough; two shows a day drain a girl — Ethel Merman >
3.
 a. : to exhaust of liquid contents by drawing them off : make gradually dry or empty
  < drain a flooded mine >
  < drain a marsh >
  : receive or carry away the surface water or discharge of
  < draining mountains of everlasting snow, the river twists for nineteen hundred miles — J.F.Dobie >
  < this lake drains the numerous small streams of the area >
 b.
  (1) : empty
   < drain of wealth or resources >
   < drained the country of its gold >
  (2) : to drink (a liquid) to the last drops
   < took the drink out of the drawer and drained it — Barnaby Conrad >
   : empty (a glass or other container) by drinking
   < allow you a respectable interlude in which to drain your glass — Richard Joseph >
intransitive verb
1.
 a. : to flow off gradually
  < blood draining from a wound >
 b. : to disappear gradually : dwindle — often used with away
  < his nervousness drained away, as it always did — H.A.Sinclair >
  < all his wealth had drained away >
2. : to become emptied or freed of liquid by its flowing or dropping
 < put the umbrella on the porch to drain >
3. : to discharge surface or surplus water or streams in a given direction or to an outlet
 < the middle western states drain into the Gulf of Mexico >
Synonyms: see deplete
II. noun
(-s)
Usage: often attributive
1.
 a. : an artificial channel by means of which liquid or other matter is drained or carried off : sewer, sink, trench
 b. : a watercourse especially when narrow
2.
 a. : the act of draining or drawing off liquid : gradual outflow or withdrawal
  < drain from a wound >
  < drain from a leaky faucet >
 b.
  (1) : a gradual outflow or withdrawal of something nonliquid : depletion or the amount of such depletion
   < a ruinous drain of dollars >
   < a net drain from the East of five million souls — G.W.Pierson >
  (2) : something that causes depletions (as of resources) : burden, strain
   < indebtedness is apt to be one of the great drains upon the income of peasant families — Notes & Queries on Anthropology >
   < the medical and social care of old people … constitutes a heavy drain on the economic resources of society — M.A.Abrams >
   < the office worker emerged as a major drain on business profits — Gabriel Kolko >
3. drains plural
 a. : dregs
  < as though … I had emptied some dull opiate to the drains — John Keats >
 b. brewing, Britain : the grain from the mash tun
4.
 a. : the liquid or other matter that is drained off or away
  < the drain had collected at the foot of the spout, forming a small pool >
 b. : a small remaining amount of liquid
  < they still had a tiny drain of petrol for the works car for station trips — Nevil Shute >
 c. : a drink especially of some alcoholic beverage
  < she thought a drain of gin and peppermint … would do most good — William Heath >
  < his cigar going and a drain of brandy … before him — A.J.Cronin >
5. : a tube or a cylinder usually of absorbent material for drainage of a wound — compare cigarette drain
III. transitive verb
: sink 14
 < snaps his fingers when he drains a long putt — Barry McDermott >
 < drained two free throws >
IV. noun
(-s)
: an electrode in a field-effect transistor to which charge carriers migrate — compare gate herein source herein

- down the drain
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更新时间:2025/3/10 10:12:00