Diasterane
重排甾烷
🗣️ 情景例句
Mr. Carlson is busy at the moment. May I help you?
Carlson先生现在正忙着呢。我可以为你效劳吗？
To consider the statistics
细看统计
That's easy. I can do that tomorrow. I'll bring my drill.
那容易。我明天就做。我把钻头带来。