绿茶是由未发酵过的茶叶制成，马里兰大医学中心研究表明，由于绿茶富含叫做茶多酚的抗氧化剂对健康相当有益。
Green tea, which is made of unfermented tea leaves, is healthy because it contains high amounts of antioxidants that are called polyphenols, according to the University of Maryland Medical Center.
如果在茶叶加工的早期就使酶活性中止，得到的就是未发酵茶或绿茶。
If the enzyme activity is caused to stop at a very early stage of tea processing, then substantially unfermented or green tea is the result.
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