Snow heaped against the wall.

雪靠墙堆积着。

《新英汉大辞典》

The snow had banked up against the wall.

雪靠墙堆积起来了。

《牛津词典》

It seemed to him that the mysterious words of these men, so strangely hidden behind that wall, and crouching in the snow, could not but bear some relation to Jondrette's abominable projects.

他感到这两个人鬼鬼祟祟地躲在墙背后，蹲在雪里，说了那些半明不白的话，这也许和容德雷特的阴谋诡计不是没有关系的。

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The episode also dealt a tiny bit with Jon Snow and Sam Tarly up beyond the Wall.

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Jon Snow is becoming a spy beyond the Wall.

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He playfully banged it against the wall, knocking a mound of snow to the floor.

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