你是否有过这样的经历？ 突然听到一首歌，但根本没人在演奏；眼前清楚浮现某人的脸，实际上他根本不在那儿；甚或感觉某人的存在，转身却发现房间空无一人？

Have you ever heard a song when none was playing, clearly seen someone’s face when no one was there or felt the presence of a person, only to turn around to an empty room?

youdao

最底层的房间象之前一样空无一人，可这通向石头过道的门关上了。

The lowermost room was as untenanted as before, but the door leading to the stone passageway was shut.

youdao

屋里面灯光幽暗，四周摆放着一圈桌椅，房间的一头有几张台球案子，正中是空无一人的舞池。

The room was dimly lit, with tables and chairs around the outer perimeter, several pool tables on one side, and an empty dance floor in the middle.

youdao