Yfs
(yf 的第三人称 -s形式) abbr. 黄热病（Yellow Fever）
🗣️ 情景例句
Then walk two blocks to the traffic light.
再走两条街到红绿灯处
Mr. Green is a member of the faculty.
格林先生是大学教员。
First left, and second right. Thank you!
先在第一个拐角向左拐，然后在第二个拐角向右拐。谢谢你！