英语词汇on(或upon) appro怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	on(或upon) appro
释义	on appro 【商业】(商品)包退换的，供试用的
随便看	transition moment transition point transition points transition probabilities transition probability transition region transition rule transition temperature Transition Temperatures transition time transition zone transition zones transitive transitively transitiveness transitivenesses transitive relation transitive relations transitives transitive verb transitive verbs transitivities transitivity transitivize transitivized

英汉双解词典包含483723条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。