单词：cast manganese steel frog
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【今日基础词】Competition 【Transcript】 Once upon a time, there was a crowd of frogs which were going to have a climbing competition, and the destination of which being the top of an extraordinarily high steel tower. A host of frogs were su
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This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. It might look and even feel like paper, but a new material created by scientists at MIT is designed to be an oil spill super-absorber. This technology d
Scientific American(六)月
This is scientific Americans 60 second science,I'm Cynthia Graber.This will just take a minute.A coal mine can decrease the local environment but a Fungi may indivertantly help cleanup the mine with its own waste products. Researchers worked with the
Scientific American(七)月
Here are 7 health problems from eating too many almonds! 以下是吃太多杏仁会导致的7种健康问题！ 1.Kidney Stones 肾结石 Certain diets and foods can make people more prone to kidney stones, especially diets high in oxalates. This is
英语美文
iron and steel industry 钢铁工业 ironworks 铁厂 foundry 铸造车间 steelworks, steel mill 钢厂 coking plant 炼焦厂 electrometallurgy 电冶金学 powder metallurgy 粉末冶金学 blast f
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Rumi: Im as sick as a dog! Hugo: It serves you right. I warned you not to eat food sold by food vendors on the street. Cleanliness is not a priority at some of those food stands. Rumi: Im not one to turn up my nose up at street food. On the street is
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