英语语法分析

It was found that the roots of Smilax China L contained flavone, flavonol, dihydroflavone and dihydroflavonol etc.

结果表明，在菝葜植物根茎中含有黄酮、黄酮醇、二氢黄酮、二氢黄酮醇等多种黄酮类化合物。