英语语法分析

This is nonrefundable, even if the source of the mineral is less prevalent than the lessee predicted it to be or if it is in an unextractable form.

即使矿源比承租人预测的要少，或者矿源是不可开采的形式，这也是不可退还的。

Nonrefundable Service Fee, Nonrefundable Paper Ticket Fee, Nonrefundable Delivery Charge.

不可退票服务费，不可退票纸门票费，工作日运送费用。