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5 t0 x1 S4 e8 bA mother Polar Bear sleeps on the frozen tundra with her cub.
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As the environment becomes worse,the poor polar bears suffer a danger of death.: d% X- u B4 U
We should do more things to save them.
5 J) }9 z; w( p) [4 Y% owhat action will you do ? |
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