graded down的用法和樣例：
例句
- She grade down her buying when uncertain about one's future.
由於前途未卜她因而減少購買數量。 - The road is no longer fit for heavy traffic, and will be finally graded down.
這條公路不適應繁忙的交通，最終會被降低級別。
graded down的相關資料：
臨近單詞
gradely
grade
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