Caption: U. S. Marines boarded helicopters for a night air assault in Afghanistan's Helmand province early Thursday. The offensive began shortly after 1 a. m. local time.

描述：周四拂晓之前，美国海军陆战队士兵登上直升机，准备对阿富汗赫尔曼德省发动夜间空中突袭。本次进攻于当地时间凌晨1点过后开始。

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Caption: U. S. Marines loaded into helicopters in Helmand Province early Thursday.

描述：周四清晨，美国海军陆战队士兵在赫尔曼德省登上直升机。

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Caption: Sceptic: a moon rock photographed during Apollo 16's mission is marked with the letter c.

描述：质疑者：阿波罗16号执行任务时拍摄到的一块月面岩石上标有字母c。

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Caption: Sceptic: a moon rock photographed during Apollo 16's mission is marked with the letter c.

描述：质疑者：阿波罗16号执行任务时拍摄到的一块月面岩石上标有字母c。

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