谁能帮我翻译一下中译英？？？？

原文:
过氧化氢酶普遍存在于动物、植物和微生物细胞内。它催化分解细胞代谢产生的H2O2和还原某些其他氧化物，在调节细胞免于死亡过程中起重要作用。过氧化氢酶含有丰富的巯基或其他活性基团相互作用，从而改变酶的活性，呈现至毒作用。本次实验内容为重金属离子铅对植物过氧化氢酶的影响，从实验中得出植物在浓度越大的重金属溶液中过氧化氢酶活性的影响就越小，即中毒就越深。 关键词：过氧化氢酶、植物、重金属
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译文:
Catalase generally exist in the animal , plant and microbial cell. It catalyzes and decomposes H2O2 emerging in cellular metabolism and reduces some other oxides, in regulate cell exempt in the course of death playing an important role. Catalase contains abundant sulfhydryl- base or other group's interaction of active base , thus change the activity of enzyme , appear to poisonous function . This experiment content is a plumbous impact on catalase of plant of heavy metal ion, obtain plant heavy heavy metal oxidize hydrogen enzyme activity little influence have among the solution in density in experiment, poisoned the deeper. Keyword: Catalase , plant , heavy metal

晕死，太专业了点，建议你请美丽的洛阳来翻吧，他是高手