Leptinidine
莱普亭定(生物碱)
🗣️ 情景例句
They can keep a record of all of the important dates
他们可以记录下重要的日子。
One cannot eat one's cake and have it.
事难两全其美。
If you want, you can change it for another one.
如果你要换，你可以换另一件。