Daucine
[化] 胡萝卜碱\\n[医] 胡萝卜硷
🗣️ 情景例句
The rural workforce has been flowing in to the cities ever since the open door policy was adopted.
自从改革开放政策实施以来，农付劳动力正不断流向城市。
I wrote music scores last night.
我昨晚在写歌谱。
You must always return your library book on time!
你必须按时归还图书馆的书！