graduated
adjective uk/ˈɡrædʒ.u.eɪ.tɪd/ us/ˈɡrædʒ.u.eɪ.t̬ɪd/
分等级的;分阶段的
divided into levels or stages
The books that the children are using to learn to read are on a graduated scale of difficulty. 儿童学习读本是根据难易程度进行分级的。
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