Why do igloos keep people warm?
本文作者： 21ST
冰屋可以保暖吗？Eskimos (爱斯基摩人) live in igloos. The Igloo is made of ice and snow. Is it cold inside an igloo? No, the igloo can block (阻挡) the freezing wind. But the igloo melts in the summer. They have to build a new one the next winter. |  |
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