但金星始终为浓云密雾所笼罩,仿佛一层厚厚的面纱,使人类难以窥视到它的真面目。
However, Venus is all the time enveloped in thick clouds and mists, as if they are a layer of very thick veil, which renders it very hard for human beings to have a peep at its true features.
对于海上钻探,北极的水域特别危险,因为极端寒冷,长时间的黑暗,密雾,以及飓风强度的大风。
The waters of the Arctic are particularly perilous for drilling because of the extreme cold, long periods of darkness, dense fogs and hurricane-strength winds.
指定水下的雾看上去有多密。
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