Dihydroxytropane
二羟基托烷
🗣️ 情景例句
I'm so glad you found the bag and took the time and trouble to return it.
我很高兴你发现了旅行袋而且不怕麻烦花时间将它送来。
Could you explain how to fill this out?
请你说明一下怎样填这张表好吗？
it would be up and down, to and for and from side to side.
呈现出上上下下、来来回回、左左右右3种性质的运动。