Thymosterin
环氧麦角甾烯三醇乙酸酯
🗣️ 情景例句
Where did you come from?
你从哪里来？
The typewriter is out of order.
这打字机出毛病了。
He's doing well in all his lessons. He's not lazy. He'll do very well in the exams.
他各门功课都学得很好。他从不懒。他考试会考得很好的。