At the next meeting, we will discuss the advertising expenses.

下次的会议，我们将讨论有关广告费用的问题。

You must leave us some margins to cover the advertising expenses.

你们得给我们留些利润以支付广告费。

It has not been decided how much we will pay for advertising expenses.

我们应该付多少广告费用还没有决定。

I hope you will leave us some margin to cover the advertising expenses.

我希望你们留给我们一点利润空间以抵消广告花费。

But it is a new product. It seems unreasonable for us to pay most of the advertising expenses.

但是，这是一项新产品，要我们付大部分的广告费似乎是不合理的。