Researchers have made a new substance from chitin, a type of protein that is found in the tough shells of crabs and shrimps. This substance is then combined with a metal element called zinc to create the key part of the battery. According to the research team, the crab shell battery can break down completely in soil after only a few months, leaving behind zinc, which is actually recyclable. Every year, six to eight million tons of seafood waste is produced all over the world. It is a shame to see this valuable material dumped back into the ocean or thrown away in landfills.
研究学者们从甲壳素（一种存在于螃蟹和虾的硬壳中的蛋白质）制出一种新的物质。接著将此物质和金属元素锌结合以制造出这种电池的关键部分。据研究团队指出，蟹壳电池只需短短几个月便能在土壤中完全分解，而残留的锌元素实际上是可回收的。每年，全世界产出六百万至八百万吨的海鲜类厨余。看到这种有价值的材料被丢回海洋或是被丢弃在垃圾场是很可惜的。
生活必备字词：
protein n. 蛋白质
leave behind... 留下……
It is a shame to V ……很可惜∕真遗憾
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本文节录自《常春藤生活英语》杂志，完整内容请见三月号。
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