Mitragynine
帽柱碱
🗣️ 情景例句
or the Museum of Natural History.
或自然历史博物馆。
Let's look at the agenda and talk the first item.
让我们看一下议程讨论第一项。
In the midst of all this movement, the weight and the pen would be still.
重物和笔都却不运动。