音标发音英式音标 [ˌdʒiː.diːˈeɪ]美式音标 [ˌdʒiː.diːˈeɪ]英式发音 美式发音 基本解释每日摄取量指引（食品包装上告知消费者每日营养摄入量信息的标识，Guideline Daily Amount的缩写）。同根派生 GDA相关词英英字典剑桥英英字典 abbreviation for Guideline Daily Amount: used on food packaging to tell you how much of something you should eat each day in order to stay healthyGDA剑桥字典GDA柯林斯字典