Yei
[医][=Yersinia enterocolitica infection]小肠结肠耶尔森（氏）菌感染
🗣️ 情景例句
Alright. Please sit down.
好的，请坐下。
Good morning, ladies and gentlemen. It's very satisfying to see so many of you here.
各位女士各位先生，早上好，在这里见到你们大家使人感到非常满意。
Are we going there by bus?
我们要乘公共汽车去吗？