Charlotte, sleepy after her night's exertions, smiled as she watched.

夏洛干了一个通宵，瞌睡沉沉，看到这番情景微笑起来。

I didn't think he could stand such exertions for much longer.

我明白他也不能支持很久了。

Nothing lay ahead of us but exertion, struggle, and perseverance.

摆在我们面前的只有努力奋斗和坚持不懈。

Muscles processing more energy require more oxygen to keep up the exertion.

肌肉处理更多的能量需要更多的氧气来维持运动。

But Catherine's health had been completely broken by her great exertions.

然而，由于过度劳累，凯瑟琳的身体完全垮下了。

Sweat is our body's way of cooling off during intense energy exertion.

出汗是我们身体在高强度消耗能量时进行冷却的方式。

He's made hard metal sweat with the exertion of killing.

他让坚硬的金属流淌着杀戮的强力。

E-bikes require less physical exertion than traditional bikes.

与传统自行车相比，电动自行车需要的体力消耗更少。

Jimmy looks at him as if trying to evaluate whether it's worth the exertion of following him.

吉米望着他的背影，仿佛在决定值不值得花力气追。

How do I measure, really, the exertion level of an athlete?

我该如何衡量运动员的真实发挥水平？