Rdna
abbr. recommended daily nutrient allowance 推荐每日营养素供给量
🗣️ 情景例句
May I check it?
我可以核对一下吗？
He should have a long spoon that sups with the devil.
跟坏人打交道，要特别小心。
OK. Let me help you. There!
好，让我来帮你。