单词：dioxide, silicon
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April 22 is a very important holiday. It's National Jelly Bean Day. Anyone who loves these delicious, flavoursome, colourful little sweets should treat themselves on this day. They should also check and make sure their family and friends are jelly be
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This is the VOA Special English Economics Report. A US fuel pump for 85 percent ethanol, 15 percent gasoline What happens when a food crop becomes a fuel crop? This is a question many people are trying to answer as demand for ethanol increases. The
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cereals, grain 谷物 coarse grain 谷粒 rye 黑麦 barley 大麦 oats 燕麦 millet 粟，黍 sorghum 高粱 bran 麸，糠 flour, meal 粗磨谷粉 wheat 小麦 spring wheat 春小麦 maize 玉米（美
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