英语词汇“training aid”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	training aid
释义	training aid training aid [′trān·iŋ ‚ād] (engineering) Any item which is developed or procured primarily to assist in training and the process of learning. AcronymsSeeTA
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