Totient
欧拉φ函数
🗣️ 情景例句
I haven't seen you since the hospital.
自从医院相遇之后再也没有见到你。
The cat shut its eyes while it steals cream.
掩耳盗铃。
It has been estimated that the weight of all the insects destroyed by spiders in Britain in one year would be greater than the total weight of all the human beings in the country.
据估计，在英国蜘蛛一年里所消灭昆虫的重量超过这个国家人口的总重量。