Would you like a discount on your room charge?

你的住宿费需要打折吗？

She mentions " room charges and incidentals."

她提到“房费和杂费” 。

We need a credit card on file for your room charges and incidentals.

我们需要一张信用卡来支付您的房费和杂费。

She says they need " a credit card on file for your room charges and incidentals."

她说他们需要“一张用于支付房费和杂费的信用卡” 。

" Room charges" are the amount that it costs you to rent the room, and " incidentals" (incidentals) are all the other things that you pay for to use in a hotel room.

“房费” 是您租用房间所花费的金额，“杂费” （incidentals）是您支付的用于酒店房间的所有其他费用。