One book had a dark stain on it that looked horribly like blood.

有一本书上沾着一块暗色的印渍。

My commutation ticket came back to me with a dark stain from his hand.

我的月季票递还给我时上面留下了他手上的黑汗渍。

Remains of dark stains smudged his eye sockets.

残留的深色污渍弄脏了他的眼窝。

A dull shininess of dark stain spread from her back along her side.

暗淡的黑色斑点从她的背部沿着她的身体蔓延开来。

He watched the dark stain spread over the gray carpet.

【spread】他看着黑色的污迹在灰色的地毯上蔓延开去。

Beneath the blue-within-blue eyes, remains of a dark stain spread down to his cheeks.

在蓝中带蓝的眼睛下，黑色的污渍一直蔓延到他的脸颊。

Then he gave a little shudder, for even in the semi-darkness he saw a dark red stain upon his hand.

然后他微微打了个寒颤， 因为即使在半明半暗中， 他也看到手上有一块暗红色的污渍。

Gentlemen all, observe the dark stain upon this gentleman's hat, no wider than a shilling, but thicker than a half-crown.

先生们，请注意这位先生帽子上的深色污渍，不超过一先令，但比半克朗厚。

Out of the smudgy little window you could see an immense expanse of sad-looking sky, and whenever there were clouds they looked very worn, old clouds, frayed at the edges, with holes in them, or dark stains like tea.

从脏兮兮的小窗外，你可以看到一望无际的阴沉天空，每当有云的时候，它们看起来都非常破旧，老云，边缘磨损，有洞，或者像茶一样的深色污渍。