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Get really close and not even light can escape.
当与黑洞真的很近的时候，光速也无法达到。
youdao
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It is hard for soldiers to escape unless the borders are close.
除非边境关闭，否则士兵想要逃跑是很困难的。
youdao
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It is hard for soldiers to escape unless the borders are close.
除非边境关闭，否则士兵想要逃跑是很困难的。
youdao