单词：pyroporphyrin
焦性吡咯紫质
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One main goal in the renewable energy field is to find an efficient, inexpensive way to split water into hydrogen and oxygen. The hydrogen could then be used as a fuel source for vehicles or fuel cells. Typically, an electric current breaks the water
发表于:2019-01-08 / 阅读(226) / 评论(0)
Scientific American(四)月
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Dialogue 1 Mark: Hey, Jingjing. You wanna come bungee jumping with me and my friends? We're heading out this afternoon. It's gonna be so much fun! 马克：嘿，京晶。你想加入我和我的朋友们去蹦极吗？我们今天下午出发，肯定
发表于:2019-03-06 / 阅读(267) / 评论(0)
英语PK台
英语PK台