Eustachitis
咽鼓管炎
🗣️ 情景例句
We urgently need to establish our own credit system.
我们期待建立我们自己的信用机制。
There was a big choice of shops in the small town.
这个小镇上有好多商店可供选择。
When the balloon was over the station, the pilot saw one of the men taking photographs.
当气球飞临基地上空时，飞行员看见有一个人在拍照。