单词：lower-grade coal
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新编大学英语浙江版
[00:02.09]UNIT 10 [00:03.87]Listening [00:05.53]1.Listen and number the pictures. [00:10.63]1 No camera. [00:14.26]2 No smoking. [00:18.56]3 No bike. [00:22.73]4 Don't run. [00:26.51]5 Don't litter. [00:30.54]6 No swimming. [00:39.09]Listen and compl
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Save the Earth 拯救地球 Hey, don't litter. 嘿，不要乱扔。 Let's save the earth! 让我们来拯救地球! I save water. 我节约用水。 I save electricity. 你节约用电。 I sort the garbage. 我把垃圾分类。 What do you do? 你做
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小学英语北京版
How to keep healthy If we want to keep our bodies healthy, we must have a good habit. We should get up and go to bed early and sleep at least eight hours every day. Do more exercise, such as walking, swimming, playing balls and so on. We should also
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