Pyrazolinium
二氢化吡唑
🗣️ 情景例句
Yes. The number, please,of the Staten Island Ferry lost-and-found office.
我想问一下Staten岛渡轮失物招领处的电话号码。
Try not to be so timid when you speak.
你讲话的时候不要那么紧张。
Great! Let's make it half past one.
好极啦！咱们就定在1：30 会面吧。