Pfs
abbr. porous friction surface(d) 渗透摩擦面
🗣️ 情景例句
I will, John.
我会的 ，John。
Cindy's sister will be staying with her for a week.
辛迪的姐姐将要陪她一个星期。
I'm poor, but I always enjoy myself! he said. I don't know why!
“我很穷，但我总是过得很愉快！”他说，“我不懂为什么！”