recommended daily allowance
noun [ C usually singular ] uk/rek.əˌmen.dɪd ˌdeɪ.li əˈlaʊ.əns/ us/rek.əˌmen.dɪd ˌdeɪ.li əˈlaʊ.əns/ (abbreviation RDA)
日建议摄入量
the amount of a substance, such as a vitamin, that should be in your food every day
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