Polyetherin
多醚菌素
🗣️ 情景例句
Ellen, where's the cinnamon? Ellen
肉桂放在哪？
In university, students are trained to become teachers and engineers.
大学的学生被训练成为教师和工程师。
Our next obstacle was a shallow pool of water about half a mile across.
下一个障碍是一片约半英里宽的浅水塘。