In the image, Moscow is hidden under a pall of smoke.

在图片中我们可以看到，整个莫斯科都笼罩在浓烟之中。

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None wore face masks, despite a pall of silica dust in the air, and some said they had not showered in years.

尽管空气中到处漂浮着粉尘和沙土，但他们没有一个人戴有防护面具，其中有一些人还说他们已经几年没洗过澡了。

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Any power vacuum in the organisation could lead to a ferocious fight that spreads a pall of terror over western Sicily.

任何组织的权力真空都可能导致激烈的争斗，使恐怖的阴云遍布西西里西部地区。

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The Obama administration says it counseled the Karzai government against allowing the return of General Dostum, whose reputation threatens to cast a pall over the country's critical election process to which the United States has lent heavy support.

VOA: standard.2009.08.17

Soon there was a thick black pall of smoke hanging low over the apartment blocks and minarets.

BBC: NEWS | Middle East | Gaza mourns symbol of struggle

This case is sure to cost Merck and its insurers billions in damages and may spread a pall of legal liability over other drugmakers.

FORBES: Merck's Mess

Indeed, while the pall of suspicion was left to hang over every professional athlete, the ACC's published report did not mention names and clubs.

BBC: Is Australian sport badly broken?