Totient
欧拉φ函数
🗣️ 情景例句
Oh, I understand. She cooks and cleans, takes care of the children.
哦，我懂了，她烧饭、清洗、照顾孩子。
The restaurant is a mile from the hotel.
那餐厅在饭店过去约有一英里。
Thanks a million.
非常感谢。