training
n.
mid-15c., "protraction, delay," verbal noun from train, v.. From 1540s as "discipline and instruction to develop powers or skills;" 1786 as "exercise to improve bodily vigor." Training wheels as an attachment to a bicycle is from 1953.
| 词汇 | training |
| 词根词缀 | Online Etymology Dictionary training n. mid-15c., "protraction, delay," verbal noun from train, v.. From 1540s as "discipline and instruction to develop powers or skills;" 1786 as "exercise to improve bodily vigor." Training wheels as an attachment to a bicycle is from 1953. |
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