双语例句
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This is because of the high concentration in Brassicas of substances known as glucosinolates which are metabolized to cancer preventive substances known as isothiocyanates .
这是因为其中含有高浓度的硫代葡萄糖酸盐，它可以代谢成癌症的预防性物质：异硫氰酸盐。