Leucoflavin
无色核黄素
🗣️ 情景例句
Do you have any other symptoms? Any more than those you've described?
你有没有其它的症状？除了那些你已叙述过的？
I'm afraid there's nothing available before noon.
恐怕中午前是没法看了。
Let's get together again.
改天再聚聚。