Lactochrome
乳黄素, 核黄素, 维生素B2
🗣️ 情景例句
where would you choose to spend our anniversary?
会选哪里去度我们的结婚周年纪念日
Yes,I understand.
是的，我明白了。
He noticed that a river of liquid rock was coming towards him.
他发现有一股岩浆正向他流过来，