Bombicesterol
[化] 蚕甾醇\\n[医] 蚕甾醇
🗣️ 情景例句
Please do the work at your own convenience.
请在方便时把这事做一做。
He is good at reading and writing, but he wishes he knew how to understand and speak better.
他的阅读和写作是强项，但他希望知道怎样去理解和说得更好。
Number 13 buses run much more frequently, don't they?
13路车跑得更勤，是不是？