Nothing to do but lie in bed and look at the four walls, he must be bored stiff.

只有躺在床上，看著四周的墙壁。他必定烦得身体僵直。

youdao

IT is embraced by all levels in the organization and reaches far beyond the four walls of IT.

它被组织中的各级所包含，并且远远超出IT的四面墙。

youdao

At first glance, their classrooms look like dreary boxes, but two of the four walls are interactive video monitors.

乍一看，他们的教室看上去像单调的箱子，但是四面墙中有两面墙是互动的视频显示器。

youdao

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