varieties [vəˈraiətiz]

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附加级

n.种种( variety的名词复数 )；品种；变化；（基于遗传差异的）变种

It's difficult to differentiate between the two varieties. 这两个品种很难辨别。
There are different varieties of plants in the garden. 花园里有各种各样的植物。来自《简明英汉词典》