57. Polar Bears Need Help 北极熊需要帮助

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.

她很担心。她担心北极熊。它们是大白熊。他们住在北方。他们需要雪。他们需要冰。他们需要寒冷的天气。污染太多了。污染使地球升温。热使冰融化。冰是北极熊的家。没有冰意味着没有家。