Lfu
最少使用算法
🗣️ 情景例句
We prefer to have payment in US dollars. It may be difficult for us to do so.
我们用美元付款。用人民币支付可能有些困难。
I've got four kids at home and no wife.
我有四个由我父兼母职的孩子。
A lot of things can change over twenty-one years.
21年了，许多东西都可能改变的。