preschool child的用法和樣例：
例句
- There is a growing proportion of mothers of preschool children in the labor force.
在勞動(dòng)力中，學(xué)前兒童的母親有越來(lái)越大的比例。
preschool child的相關(guān)資料：
臨近單詞
preschool
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