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.
她非常擔(dān)心,為北極熊擔(dān)心。它們是又大又白的熊,生活在北極。北極熊需要雪,需要冰,還需要寒冷的氣候。然而污染太多了,使得全球變暖。熱量讓冰雪融化,而冰雪是北極熊的家,沒(méi)有冰雪,北極熊就沒(méi)有家了。
她非常擔(dān)心,為北極熊擔(dān)心。它們是又大又白的熊,生活在北極。北極熊需要雪,需要冰,還需要寒冷的氣候。然而污染太多了,使得全球變暖。熱量讓冰雪融化,而冰雪是北極熊的家,沒(méi)有冰雪,北極熊就沒(méi)有家了。

