Totient
欧拉φ函数
🗣️ 情景例句
Yes, Linda.
是的，Linda。
He was renowned as a portrait painter.
他以肖像画家著名。
If you want to send a letter to an office abroad that is in a different time zone, you can send a fax, and it will be received even though the office is not open.
如果你要寄信到不同时区的国外办公室，你可以发个传真，即使办公室不开门，信也会被收到。