Dihydroriboflavin
二氢核黄素
🗣️ 情景例句
The welcome sign is up:
欢迎的标语已经弄好了：
He that fears you present, will hate you absent.
当面怕你的人背后会恨你。
Only in a sparsely-populated rural community is it possible to disregard it.
只有在人口稀少的农村，才可以忽视准时的习惯。