This is no longer acceptable, especially in view of some tragic crashes in which pilot fatigue played a role.

由于飞行员疲劳驾驶是很多空难悲剧的重要因素，因此，这已是非常严重的现象了。

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Ocular and brow muscles are especially prone to fatigue because they are active for most of our waking hours.

眼部和额部的肌肉更容易疲劳，因为他们在我们清醒的大部分时间处于活动状态。

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Patient: I have felt flustered and fatigue, especially during working for three days.

我感觉心慌和疲乏，尤其是近三天工作时症状明显加重。

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Bernardo Ramazzini, a 17th century occupational physician actually recognized the health hazards associated with prolonged sitting, especially among writers who developed fatigue in their upper extremities.

FORBES: Why Sitting Increases Your Risk of Dying Sooner

They'll look for fatigue cracks often, especially with heavy traffic, especially trucks.

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Some common side effects, like nausea, dizziness or slight fatigue, are manageable--especially if the end result is pneumonia or tuberculosis, diseases that were once deadly but now can be treated with antibiotics.

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