Ackermann's function
[计] 阿克曼函数
🧩 词语组成解析
🗣️ 情景例句
I couldn't agree with you more.
我完全同意你的看法。
It's up to date.
这个很时兴。
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。