プログレッシブ和英中辞典(第4版)の解説
こうがくねん【高学年】
the upper grades (of elementary school)
高学年向きの本
a book for fifth and sixth grade elementary school pupils
日本語の解説|高学年とは
the upper grades (of elementary school)
高学年向きの本
a book for fifth and sixth grade elementary school pupils