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直到今天，人类还没有破译出外星人留下的这些符号或信息。星人留下的这些符号或信息。
Even today, mankind has not decipher the alien left behind these symbols or information.
youdao
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直到今天，人类还没有破译出外星人留下的这些符号或信息。星人留下的这些符号或信息。
Even today, mankind has not decipher the alien left behind these symbols or information.
youdao