Eustigmin
优斯的明(迷走神经紧张药)
🗣️ 情景例句
About fifteen minutes.
大约十五分钟吧。
We headed out to school.
我们出发去学校。
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。