While the phases must always follow each other in this order, their length and their severity varies greatly from cycle to cycle.

虽然经济周期的各个阶段总是以这种顺序互相衔接，但是各阶段的时间长短以及严重性却各有所不同。

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The condition varies in severity, with some people functioning well, but others completely unable to take part in normal society.

情况由于严重性不同而表现各异，一些人能够表现良好，而一些人却完全无法参与正常社会活动。

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ARV treatment varies according to the patient but essentially entails the mixing of an assortment of drugs, catered to the severity and nature of the patient's illness.

抗逆转录病毒(ARV)疗法视病人情况不同而有所区别，但实质则是使用几种药物的混合物，以适应病人疾病的严重程度和生理机能。

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The severity of the pain varies from one person to another, and from one headache to another in the same person.

CNN: Tension headache

The severity of the symptoms varies from mildly bothersome to virtually unbearable.

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The severity of what is happening to Asia's young varies from country to country and within those countries.

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