Totient
欧拉φ函数
🗣️ 情景例句
Why will the voters vote for you against Boswell,Mrs. Stewart?
为什么选民会投票支持你和Boswell对抗呢，Stewart太太？
Are you going to America soon?
你就要去美国了吗？
This knocks the turtle down several feet.
这一下子把海龟撞下去好几英尺。