The sheer unexpectedness of it made my hair stir under my cap.

这猝不及防的惊变，使我帽子下面的头发都竖起来。

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Modern hospitals are confronted with various crises at any moment, crises characterized by unexpectedness, uncertainty, and urgency.

现代医院每时每刻都面临着各种危机。危机具有突发性、不确定性和时间的紧迫性等特性。

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At every turn of our lives, we find unexpectedness. Some are happy while others are sad, but we have to learn to take the bitter with the sweet.

人生中我们处处都可发现意外，有些是开心的有些是悲伤的，但我们应该学会既能享乐也能吃苦。

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"The unexpectedness and the inability of people to adjust quickly caused problems, " says Huntington.

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