I don't want to have such a gruelling journey anymore.

我再也不想来一场这样使人筋疲力尽的旅程了。

He had to finish the gruelling schedule today.

他今天不得不完成这累人的日程。

It was a gruelling test for John.

对约翰来讲，这是一个艰巨的考验。

I've had a gruelling day.

我一天下来累得筋疲力尽。

After the gruelling test, he felt totally spent.

紧张的考试过后，他感觉筋疲力尽了。

He had complained of exhaustion after his gruelling schedule over the past week.

完成上星期紧张的日程安排后，他抱怨自己已筋疲力尽。

The climbs were gruelling but satisfying.

爬坡比较累人，但是我很满足。

Just getting around the city is gruelling.

光是绕城转一圈就够累人的。