Neoagigenone
二羟基螺甾酮
🗣️ 情景例句
In general, American boys like baseball.
一般而言，美国少年喜欢棒球。
I suppose it's difficult for you to do this.
我推测对你来说做这件事情是很困难的。
when a significant number of people are living permanently in space.
如果有相当数量的人永久性地住在太空，