Strong swimmers, polar bears have slightly webbed PAWS to aid in paddling.

强有力的游泳者，北极熊有些微的蹼爪帮助划动。

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Polar bears are strong swimmers but not strong enough to swim to the Antarctic.

北极熊很会游泳，但还是没能力从北游到南的。

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They are very strong swimmers, and their large front PAWS, which they use to paddle, are slightly webbed.

它们可是游泳的高手，那双像船桨似的前爪呈轻微的脚蹼状。

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Others burned. Only a few strong swimmers survived.

VOA: special.2009.11.11

The 18-year-old schoolboy from Penarth was named in the 32-strong British squad on Thursday, and is relishing the prospect of beating the world's best swimmers.

BBC: Davies targets world's best