这样长途旅行之后感到疲劳是正常的。

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

他已康复得不错，但仍然容易感到疲劳。

He has made a good recovery but still tires easily.

机翼显示出金属疲劳的迹象。

The wing of the plane showed signs of metal fatigue.

过度的疲劳开始让救援队吃不消了。

The strain was beginning to tell on the rescue team.

她的神经处于极度疲劳状态。

She was in a state of nervous exhaustion.

这个事故是驾驶员疲劳所致。

Driver fatigue was to blame for the accident.

由于越来越疲劳，她的工作开始出现差错。

As she became more tired, errors began to creep into her work.

疲劳影响注意力的集中。

Tiredness affects your powers of concentration.

疲劳驾驶会出人命的。

Tiredness while driving can kill.

忽视疲劳感会打乱我们的生物钟。

Ignoring feelings of tiredness knocks our body clocks out of kilter

失血过多会导致你疲劳并且贫血。

Losing a lot of blood makes you tired and anaemic.