Thymosterin
环氧麦角甾烯三醇乙酸酯
🗣️ 情景例句
Go by the book.
照章办事。
It must be about three thirty.
现在想必是三点三十分左右。
The two men quarrelled bitterly and it was clear that the argument could only be settled by a fight.
两个人争吵不休，显而易见，只有较量一番才能解决问题。