black frost

On that bleak hill top the earth was hard with a black frost, and the air made me shiver through every limb.

在那荒凉的山顶上，土地由于结了一层黑冰而冻得坚硬，冷空气使我四肢发抖。

A fortnight later, when the snow had gone, and had been followed by a hard black frost, she took advantage of the state of the roads to try the experiment.

两个礼拜以后，风雪过去了，接着又是一场严酷的霜冻，她就利用道路冻住了的时候去进行这次拜访。

In winter the frost is always there before it comes to us; and deep into summer I have found snow under that black hollow on the north-east side!

在冬天那儿总是比我们这里先下霜；盛夏时，在东北面那个黑洞里我还发现过雪哩！

In this area black frost usually comes first in early December.

这个地区通常在12月初开始出现严霜.

She seemed to have powdered her face again and the lamplight gave it a grey-green tinge, rather like a black withered leaf covered with frost.

她的脸上大概又擦了粉，被灯光照得显出点灰绿色，像黑枯了的树叶上挂着层霜。