• 子供の歯が抜け替わり始めた
    • The child began to lose its milk [baby] teeth.
    • 今は鳥たちの羽が抜け替わる季節です
    • This is the time [season] when birds 「lose their feathers [molt].
    • 犬の毛が抜け替わり出した
    • Our dog has started shedding.