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grade up

更新日期:2026-08-14

词语 grade up
释义

grade up

    • 挑选,分等级:

      The apples were graded up before being sent to market.

      苹果在上市前被分了等级。

    • 升级,升等:

      All students in this class will be graded up.

      这个班的所有学生都将升级。

    • 【畜牧业】(把杂种、劣种动物)与纯种杂交改良:

      He graded up his herd.

      他使他的牛与良种牛交配。

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