单词：end mill with parallel shank
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AS IT IS 2014-10-31 Ghana's Bamboo Bikes Hit the Streets 加纳的竹制自行车亮瞎街头 Bamboo does not get much respect in Ghana. Farmers think of bamboo as an unwanted plant that needs to be cleared from their land. Construction workers use i
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By Mil Arcega Washington, DC 13 January 2006 watch Frog Global report A new study published in a prominent scientific journal has provided the first concrete evidence that global warming is contributi
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Lesson 40 The Sugar-Cane 第40课 甘蔗 Have you a sweet tooth? Do you like things with sugar in them? If you do (and I am almost sure that you do),you will like this lesson, for it will tell you where sugar comes from, and all about it. 小朋友，你
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