Subdifferential
次微分
??? 情景例句
Jnice to have you with us.
很高興你能跟我們在一起。
At your request, we are offering you the following items. This offer will remain open within 3 days.
應你方要求，我方就如下產品報價，此報價3日內有效。
The month after next he'll fly to Tokyo.
再下個月他將飛往東京。