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1. The tankwas filled with tank air, making itdifficult to move around.
坦克里充满了坦克空气，使得移动变得困难。
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2. The tank airwas so thick that it made it hardfor the soldiers to breathe.
坦克里的空气质量如此浓重，以至于士兵们难以呼吸。
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3. Thetank air was pumped out, andthe soldiers were able to breathe again.
坦克里的空气质量被抽出，士兵们得以再次呼吸。