Mitragynine
帽柱碱
🗣️ 情景例句
there will be a surprise.
会有一项让你惊喜的事。
Jeffrey was allowed to listen in on the committee's debate.
杰夫里被允许旁听委员会的讨论。
So she's been at this school since September?
这么说来，她自9月份才在这所学校学习？