It's normal to feel tired after such a long trip.

这样长途旅行之后感到疲劳是正常的。

They may feel tired, and though outwardly calm, can be irritable.

他们可能觉得累，所以尽管表面上平静，却可能容易发怒。

We will walk very, very slowly, and if we feel tired we can rest by the wayside.

我们会走得非常非常慢，如果我们感到累了，我们可以在路边休息。

Many people stay up late at night, which makes them feel tired during working hours.

很多人晚上熬夜,这使得他们在工作时间感到疲劳。

Climbing the mountain made me feel tired.

爬山使我劳累。