This was the genesis of modular arithmetic, a critical concept now ubiquitously used in computer science and cryptography.

这就是模算术的起源，模算术是现在计算机科学和密码学中普遍使用的一个关键概念。

I know, I know, you'd think the country that is now ubiquitously known for beautiful blue rooftops, crystal blue waters, and a blue flag would have a longer history with the color.

我知道，我知道，你会认为这个以美丽的蓝色屋顶、湛蓝的海水和蓝色旗帜而闻名的国家会跟这个颜色有更长的历史。