To most of us sharks are the most dangerous fish in the sea and they attack humans.

对我们大多数人来说，鲨鱼是海里最危险的鱼类，它们攻击人类。

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Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea.

鲑鱼在河流和海洋之间迁徙时也会携带危险的化学物质。

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Life on the sea, as any fisherman or sailor could tell you, is hard and dangerous.

海上的生活，正如任何渔夫或水手都会告诉你的那样，既艰苦又危险。

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The government says offshore processing is aimed at deterring people from making the dangerous journey across the sea to Australia.

BBC: Australia sends first group to PNG asylum camp

Last year, the government re-established offshore processing camps for asylum seekers in Papua New Guinea and Nauru in a bid to deter people from making the dangerous journey across the sea to Australia.

BBC: Two dead in Australia asylum boat capsize

The problem is, as sea level rises, storm surges become more dangerous and more frequent, and sea levels along the northeast Atlantic coast are rising faster than most anyplace on earth.

FORBES: Hurricane Sandy's Storm Surge: A Preview of Things to Come