Aphthosis
口疮病
🗣️ 情景例句
Certainly, sir. The elevators are right across the lobby.
当然可以，先生。电梯就在大厅的正对面。
9:25 on Track 12.
9点25分，12轨道。
Duck your head as you go through the door there.
经过那儿的门时，请将头放低。