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。他们是大的，白色的熊。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。有太多的污染。污染加热地球。冰热融化。冰是北极熊的家。没有冰就意味着没有家。
