The nest he's guarding is that dark patch on the side of the rock.

它守护着的巢穴在岩石漆黑的缝隙里。

youdao

His diving goggles and a dark patch of blood were all that remained in the water.

死者的潜水镜，还有成片的暗黑血渍仍然漂浮在海水中。

youdao

The cause of the dark patch of water in the upper left quadrant of the image is unknown.

图片左上方四分之一处的深色块海域是未知区域。

youdao

See this little dark patch, here?

BBC: The Channel Islands�� surviving lore

Other papers have pictures of David Cameron leaving Downing Street and highlight what the Daily Mail calls a large patch of grey in his dark hair.

BBC: Eurozone debt talks dominate papers

By the shore is a small patch of lighter green surrounded by dark forest.

BBC: The perfect trip: Switzerland