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单词 training wheel
释义

Definition of training wheel in English:

training wheel

noun ˈtreɪnɪŋ wiːl
  • 1A wheel that is turned in order to train a cannon or other firearm. Now historical.

  • 2Chiefly North American. In plural A pair of small wheels fitted one on either side of the rear wheel of a bicycle, to add stability when learning to ride.

Origin

Mid 19th century (in an earlier sense).

 
 

Definition of training wheel in US English:

training wheel

nounˈtreɪnɪŋ wiːl
  • 1A wheel that is turned in order to train a cannon or other firearm. Now historical.

  • 2Chiefly North American. In plural A pair of small wheels fitted one on either side of the rear wheel of a bicycle, to add stability when learning to ride.

Origin

Mid 19th century (in an earlier sense).

 
 
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更新时间:2026/6/7 0:11:15