He looked out of the window. Dark clouds were moving; it was becoming foggy.

他向窗外望去，乌云飘动着，天正变得雾蒙蒙的。

youdao

As he tells it,one day he looked in the window of a school and noticed how dark it was.

VOA: special.2009.12.21

The historic co-op retains much of its turn-of-the-century detailing, including leaded windows, a multi-paned picture window, dark paneled walls, oak doors and original cage elevator.

FORBES: Connect

The words were there somewhere, behind blurred window glass, in dark corners, as long as he could remember what he was searching for.

ECONOMIST: Tom DeBaggio

Bartholomew stood by the window, watching another dusk becoming dark, wishing there was not now, unknown to her, a gulf between them.

NEWYORKER: Faith