单词:non-polluting coating
单词:non-polluting coating 相关文章
Have you noticed that it's getting warmer and warmer every year? To put it simply that's because of air pollution. Scientists tell us that because of air pollution, the earth's heat cannot escape. Thi
unit 4 The Earth [00:19.63]单元 四 地球 [00:21.55]Look and learn [00:23.08]看并且学习 [00:24.61]the Earth the Sun [00:26.95]地球 太阳 [00:29.28]stars the Moon [00:32.26]星星 月亮 [00:35.24]Look and say [00:36.77]看并且说 [00:38.
This is Scientific American's 60-Second Science. Im Cynthia Graber. This will just take a minute. Buildings consume about a third of the energy and two-thirds of the electricity in the U.S. Roofs are a good place to try to cut those figures. Because
335. Why didn't I understand your meaning? W: I want you to wait for me for a minute. M: Why don't I understand your meaning. W: All the others got me. M: Why don't I understand your meaning? W: You are not familiar with it. It doesn't matter. M: I w
335. Why didn't I understand your meaning? W: I want you to wait for me for a minute. M: Why don't I understand your meaning. W: All the others got me. M: Why don't I understand your meaning? W: You are not familiar with it. It doesn't matter. M: I w
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