Peptinotoxin
消化毒素
🗣️ 情景例句
I have one ten-day tour that is still available. It will depart from New York on Dec. 24.
我们一个10天的旅行团还有空位，12月24号离开纽约。
What platform does the train leave from?
这班车从哪个站台开出呢？
Work on it had begun before my sister left.
这栋房子在我姐姐离开之前就已动工了，