单词：boride layer
单词：boride layer 相关文章
CHAPTER ONE [00:44.25]READING [00:45.74]Page 2 and 3 [00:48.43]THE YOUNG GREEN CONSUMER GUIDE [00:51.51]Review by Tony Ma [00:54.62]This book says that our world is in danger [00:59.32]It is vital that we do something to save the earth [01:04.21]Firs
上海牛津初中英语九年级
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
听一分钟英文-O
Todd: So Julia, I was looking at your website and I noticed that you did a bike trip in Cambodia. Julia: Yes, that's right. I joined an organization called Pepi and we did a ride from Siem Reap to Vietnam, Ho Chi Minh City. Todd: Wow, that's pretty c
原版英语对话1000个
Todd: So Julia, I was looking at your website and I noticed that you did a bike trip in Cambodia. Julia: Yes, that's right. I joined an organization called Pepi and we did a ride from Siem Reap to Vietnam, Ho Chi Minh City. Todd: Wow, that's pretty c
英语趣味课堂
There is a special day to recognize the importance of the ozone layer. In 1995, the United Nations General Assembly decided September 16th is the International Day for the Preservation of the Ozone Layer. This is the date on which countries signed th
英语课程学习计划和讲义
I first heard about the ozone layer about twenty years ago. I was still in school. I thought it was interesting, but I didnt take it seriously. It was a bit like science fiction, I mean, how could there be a giant hole in the atmosphere? Over the yea
纯正英语一分钟