Leptinidine
莱普亭定(生物碱)
🗣️ 情景例句
He started out as a salesman.
他开始时当推销员。
The fault of the horse is put on the saddle.
马劣动怪马鞍坏。
When the instrument is situated at more than 700 miles from the earthquake centre,
如果把这种仪器安装在距震源700多英里远的地方，