有几十万人正处于危险中。 hundreds of thousands of visitors troop through. Army 着重指军队的整体，而 troop (通常用复数形式 troops)则着重指构成军队的士兵成员。如： the troops forced an entrance into the town. A troop of , a troupe of 区别a troupe of 一剧团的，一群的；比如a troupe of actors.一群演员。a troop of 一个部队的，一群的，比如a troop of cavalry.一个骑兵连。这两个词组在一般情况下都.
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后接表示某事物名词，意思是成千上万的某事物。 如： hundreds of thousands of people are at risk.
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