Yf
abbr. 黄热病（Yellow Fever）
🗣️ 情景例句
Oh, Somebody's at the door. I have to go.
哦，有人来了，我得去开门。
How long will you remain there?
你将会在那里逗留多久？
Yes. Wash your hands with soap at the end of your experiment.
可以。在实验结束时要用肥皂洗手。