Allocholestanone
別膽(甾烷)酮, 糞(甾烷)酮
??? 情景例句
Anything special you want to talk about?
有什么特殊的事要談嗎？
Better wear out than rust out.
與其閑散不如忙碌。
When she reached home, her mother asked:Have you got everything?
“你東西買齊了嗎？”