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单词 trainable
释义

WordReference Random House Unabridged Dictionary of American English © 2024
train•a•ble  (trānə bəl),USA pronunciation adj. 
  1. capable of being trained.
  2. [Educ.]of or pertaining to moderately retarded individuals who may achieve some self-sufficiency, as in personal care.
  • train + -able 1540–50
train′a•bil i•ty, n. 

WordReference Random House Learner's Dictionary of American English © 2024
train /treɪn/USA pronunciation   n. 
  1. Rail Transporta connected group of railroad cars: [countable]a long freight train of about 100 cars.[uncountable* by + ~]only travels by train or bus.
  2. [countable] a line or procession of persons, vehicles, etc.
  3. something drawn along, as a part of a long dress that trails behind on the ground:[countable]the bride's white dress and long train.
  4. a course or path in one's thinking or reasoning:[countable]I've lost my train of thought.

v. 
  1. to develop the habits, thoughts, or behavior of (a child) by teaching or discipline: [+ object + to + verb]to train him to be kind to animals.[+ object]to train her in the ways of the church.
  2. to (cause to) become skilled in some work by teaching or practice: [+ object]Merlin trained her in the arts of sorcery.[+ object + to + verb]His father trained him to fix cars.[no object]She trained as an apprentice.
  3. to (cause to) become fit by proper exercise, diet, etc., as for an athletic performance: [+ object]trained him in boxing.[no object]trained for the race by running twenty miles a day.
  4. to discipline (an animal), as in the performance of tasks or tricks: [+ object][+ object]She trained her dog.[+ object + to + verb]She trained her dog to obey commands.
  5. Botany[+ object] to bring (a plant, etc.) into a particular shape or direction, by bending, cutting, etc.
  6. to bring (a gun, a camera, etc.) to focus on an object:[+ object]Six guns were trained on him, so he dropped his weapon.
  7. Rail Transport[no object] to travel or go by train.
train•a•ble, adj. 

WordReference Random House Unabridged Dictionary of American English © 2024
train (trān),USA pronunciation  n. 
  1. [Railroads.]a self-propelled, connected group of rolling stock.
  2. a line or procession of persons, vehicles, animals, etc., traveling together.
  3. [Mil.]an aggregation of vehicles, animals, and personnel accompanying an army to carry supplies, baggage, ammunition, etc.
  4. a series or row of objects or parts.
  5. [Mach.]a connected set of three or more rotating elements, usually gears, through which force is transmitted, or motion or torque changed.
  6. order, esp. proper order:Matters were in good train.
  7. something that is drawn along;
    a trailing part.
  8. an elongated part of a skirt or robe trailing behind on the ground.
  9. a trail or stream of something from a moving object.
  10. a line or succession of persons or things following one after the other.
  11. a body of followers or attendants;
    retinue.
  12. a series of proceedings, events, ideas, etc.
  13. the series of results or circumstances following or proceeding from an event, action, etc.;
    aftermath:Disease came in the train of war.
  14. a succession of connected ideas;
    a course of reasoning:to lose one's train of thought.
  15. [Astron.]
    • the trace of light created by a meteor falling through the earth's atmosphere.
    • the tail of a comet.
  16. a line of combustible material, as gunpowder, for leading fire to an explosive charge.
  17. [Physics.]a succession of wave fronts, oscillations, or the like.

v.t. 
  1. to develop or form the habits, thoughts, or behavior of (a child or other person) by discipline and instruction:to train an unruly boy.
  2. to make proficient by instruction and practice, as in some art, profession, or work:to train soldiers.
  3. to make (a person) fit by proper exercise, diet, practice, etc., as for an athletic performance.
  4. to discipline and instruct (an animal), as in the performance of tasks or tricks.
  5. to treat or manipulate so as to bring into some desired form, position, direction, etc.:to train one's hair to stay down.
  6. [Hort.]to bring (a plant, branch, etc.) into a particular shape or position, by bending, pruning, or the like.
  7. to bring to bear on some object;
    point, aim, or direct, as a firearm, camera, telescope, or eye.
  8. to entice;
    allure.

v.i. 
  1. to give the discipline and instruction, drill, practice, etc., designed to impart proficiency or efficiency.
  2. to undergo discipline and instruction, drill, etc.
  3. to get oneself into condition for an athletic performance through exercise, diet, practice, etc.
  4. to travel or go by train:to train to New York.
  • Old French tra(h)in (masculine) series of people, animals, or things, tra(h)ine (feminine) something dragged behind, both derivative of tra(h)iner
  • Vulgar Latin *tragīnāre, derivative of *tragīna something dragged or drawn (compare Medieval Latin tragīna carriage), derivative of *tragere to pull, for Latin trahere; (noun, nominal) Middle English train, traine
  • Middle French trainer, Old French tra(h)iner
  • (verb, verbal) late Middle English traynyn to pull or drag in the rear 1350–1400
train less, adj. 
    • 3.See corresponding entry in Unabridged convoy.
    • 6.See corresponding entry in Unabridged array, arrangement.
    • 10.See corresponding entry in Unabridged file, column.
    • 18, 19.See corresponding entry in Unabridged See teach.
    • 19.See corresponding entry in Unabridged exercise, drill, practice, school.

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