They charge a daily rate.

他们按日收费。

What is the daily rate?

每日租金。这里值的是住一天的房价。

What's the daily rate for a compact car?

一部小型车的每天租金是多少？

What 's the daily rate for renting a Cadillac?

租一部凯迪拉克轿车一天的费用是多少？ ？

Daily rate inclusive of per diem hotel and auto expense.

每天费用包括三餐、酒店和汽车费用。