六年级作文：Polar Bears Need Help_北极熊需要帮助英语作文50字

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　　Polar Bears Need Help_北极熊需要帮助英语作文50字

　　She worries a lot. She worries about polar bears. They are big, white bears. They live in the north. They need snow. They need ice. They need cold weather. There is too much pollution. Pollution heats up the Earth. Heat melts the ice. The ice is the polar bears’ home. No ice means no home.

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