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Polylactic acid (PLA) is a new bio-based and renewable biodegradable material, which is made of starch raw materials proposed by renewable plant resources (such as corn). Starch raw materials are saccharified to obtain glucose, then glucose and certain strains are fermented to produce high purity lactic acid, and polylactic acid with certain molecular weight is synthesized by chemical synthesis method. It has good biodegradability, can be completely degraded by microorganisms in nature under specific conditions after use, and finally generates carbon dioxide and water without polluting the environment, which is very beneficial to environmental protection and is recognized as an environment-friendly material. This thing is actually a long piece, and then "curled up" in it and wrapped in a cylinder shape. What's the use? You will see it in a short time.他急得四下乱看，恨不得地上裂开一道缝，好让他藏进去，真是的，太懒了，也不挖个地洞。于邪魔外道而言，他们是令人欲除之而后快的眼中钉肉中刺该剧讲述了两年前萧宁和苏明爱情变故后，在杨皓的霸道告白下，与杨皓走到了一起，杨皓七年的苦恋终于得到了圆满结局。可是苏明不甘心，暗中使出诡计，使得萧宁与杨皓经历了一系列的信任危机，最终二人只能选择分手。分手后的杨皓对这座城市再也没有任何留恋，选择了离开这座城市。而萧宁也因为李敏的悔改，而知道了全部的真相。等她再去寻找杨皓的时候，却发现杨皓已经离开这座城市了。　　为了任务暂时脱下拳击手套握手言和，眼看这次任务就要圆满完成了。只杀敌，不表演。坎卡伊和乔安之间的感情遭到了乔安家人的强烈反对，为了拆散两人，乔安的母亲斩断了乔安的经济来源，乔安逼迫坎卡伊卖身赚钱，两人之前的关系每况愈下。最终，忍无可忍的坎卡伊决定离开乔安，但等待着她的，并非一帆风顺的命运。