When we're planning for a trip, we should make allowance for the weather.

计划旅行时，我们应该考虑天气。

We must make allowance for his youth.

我们必须体谅他年轻。

We must make allowance for his youth.

我们应当考虑到他还年轻。

Here we don't make allowance for transaction costs.

这里我们是没有考虑交易成本的。

We must make allowance for his youth and inexperience.

我们应当体谅他年轻和没有经验。