越来越多的人开始使用加密货币进行在线交易。

More people are using ___crypto for online transactions now.

数学就是我的氪石，每次考试都会让我崩溃。

Math is my ___kryptonite, it always makes me panic during exams.

克鲁普托是超人的忠实伙伴，和他一起守护大都会。

___Krypto is Superman's loyal companion, protecting Metropolis alongside him.