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单词
ˌfree ˈradical
释义
ˌfree ˈradical
NOUN
C
SCIENCE
a molecule that has an extra electron and can react very easily with other molecules. Free radicals sometimes form in the human body and can cause cancer . 自由基，游离基（一种有多余电子、易与其他分子发生反应的分子，有时可在人体内形成并引发癌症）