Thymosterin
环氧麦角甾烯三醇乙酸酯
🗣️ 情景例句
About one month. I'm just sightseeing.
大约一个月。我只是观光旅游。
It is a matter of life and death to me.
那对我是生死交关的问题。
His work starts at half past eight, and finishes at a quarter to five.
30开始工作，4：45下班。