赤道 equator 赤道附近非常热. It is very hot near the equator 北极1. the North Pole2. the Arctic Pole3. the north magnetic pole 科学家们认为北极面临着被污染的危险。 Scientists think that the Arctic is endangered by pollution. 这些鸟能够战胜北极冬天的危险。 These birds are able to survive the perils of the Arctic winter
