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This lets the gas escape and slows the bullet to below the speed of sound.
由此气体得以枪管里泄出,而子弹的速度也会降到音速以下.
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The author's name was below the title. It was in smaller letters. Jack read:'slim Cooley. "
作者的名字就在题目底下, 是用小字母写的, 杰克读: “ 桑姆-可利. ”
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