地球上最后一个人独自坐在房间里，这时，忽然响起了敲门声……
The last man on Earth sat alone in a room. There was a knock on the door…
地球上的最后一个人正在房间里坐着，这时他听到了敲门声…
The last person on Earth was alone in a room. There was a knock on the door.
地球上的最后一个人正在房间里坐着，这时他听到了敲门声…
The last person on Earth was alone in a room. There was a knock on the door.
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