找到 1970 let it be 相关歌词1首

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• Model Test 01

  ... kind of indoor pollution. People began to notice the problem in the early 1970s. When builders began making houses and offices, they did not waste energy. To do this they built buildings that limited the flow of air between inside and outside. They also began using man-made building materials. Thes...

  华研外语 六级预测