Coregonin
[化] 白鲑精蛋白\\n[医] 白鳟精蛋白
🗣️ 情景例句
It took years of hard work.
那需要多年辛苦工作。
What would you have done last night if you hadn't had to study?
如果昨晚你不必学习你会做什么？
Whose is this watch?
这块表是谁的？