Polyetherin
多醚菌素
🗣️ 情景例句
Hello, my name is Susan and I am calling to confirm my reservation.
喂，你好，我叫苏珊，我大电话确定我的预定。
Have you got any plans?
你有什么计划吗？
We have special river birthday parties in the summer.
夏天，我们为这条河举办特殊的生日宴会。