D-araboflavin
[化] D-阿拉伯黄素
🗣️ 情景例句
I haven't ruled out the possibility.
我还没有排除期可能性。
How much is it by registered mail?
挂号信要多少钱？
Why do you have to work so hard?
为什么你要这样卖力地工作呢？