Totient
欧拉φ函数
🗣️ 情景例句
Can you tell me how to get to the railroad station?
你能告诉我怎样去火车站吗？
I succeeded because I willed it; I never hesitated.
我成功是因为有决心，从不犹豫。
In the evenings he studied hard for his exams, and most mornings he took tourists around Oxford.
他晚间努力学习，以应付考试，而大多数早上，他则带领游客在牛津大学参观。