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infant; baby; little child
幼な子が母親の手をしっかり握っている。
The little child is gripping its mother's hand tightly.
幼な子の無邪気な笑顔に周りが和んだ。
The innocent smile of the little child put everyone at ease.
公園で幼な子たちが砂場で遊んでいる。
Little children are playing in the sandbox at the park.