Gemshorn
风管类音栓
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
I don't know what I should have done without your help.
要不是您的帮助，我真不知道该怎么办。
The doctor looked over Mrs Brown very carefully.
医生非常仔细地给布朗夫人作了检查。