trainingn.
英 'treɪnɪŋ | 美 'trenɪŋ
中文n. 训练；培养；瞄准；整枝\nv. 训练；教养（train的ing形式）
训练；培养；瞄准；整枝
v. 训练；教养（train的ing形式）
词根词源
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.
关键词