Some teachers went to school to support students who had chosen to brave the murk and attend class.

一些老师依旧去学校为不顾雾霾困扰勇敢来上学的学生们上课。

youdao

Meanwhile an unusually wet autumn and a low pressure weather systems over the eastern seas have pushed the murk from steel plants in the south back up into the North China plain.

与此同时，一个异常潮湿的秋天和东部海域的低气压天气系统将南方钢铁厂排放的污染物推回华北平原。

youdao

The lights of the skyscrapers below glow like burning cigarette ends through the murk of twilight.

BBC: Chicago��s celluloid city

But there was more to the novel than that something that squirmed in the murk of its motivations.

NEWYORKER: Ring Cycle

The wetlands are best traversed by an airboat, and guides warn tourists that anything dropped into the murk is gone for good.

WSJ: Man hunting for pythons finds mysterious jewelry