Pmmu
[计] 页式存储器管理部件
🗣️ 情景例句
Excuse me. Is this seat taken?
对不起 ，请问这个座位有人吗？
When the cat's away the mice will play.
猫儿不在，老鼠造反。
Hardly anyone can positively enjoy sitting in a train for more than a few hours.
很少有人能够真正喜欢坐几个小时以上的火车。