Pfn
页帧号,页面号
🗣️ 情景例句
I have received the secretarial training for six months.
我曾接受过6个月的秘书训练。
To jump out of the pool
又跳了出来
That sounds interesting. That was a hundred years ago, wasn't it?
听起来很有意思。那是一百年前的事了，不是吗？