Totient
歐拉φ函數
??? 情景例句
Do you think they're open?
你們說現在還開門嗎？
Our policy is not to grant exclusivity.
我們的方針是不授與專賣權。
but something was there, and he will not rest till he has captured it.
可是，好像還有什么東西存在著，不把它捕捉到，作家是不會罷休的。