3 a- i$ U1 J9 v% a- V9 q' Z: ` h' r: E. v [2 ]. y A mother Polar Bear sleeps on the frozen tundra with her cub. ; W) M4 z7 d+ T/ c) J7 c
2 g2 a! e. @$ ]$ M- c
As the environment becomes worse,the poor polar bears suffer a danger of death.5 m/ n; X5 A7 C7 @* S; G
We should do more things to save them. 3 U1 S( |! w ]2 o
what action will you do ?
/1 
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发表于 2008-1-18 23:58:17
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