Early childhood: the period when a child is typically between about 1 and 6 years old, distinct from infancy and school age; an important time for play and habit formation.
幼児期には十分な睡眠と栄養が成長に不可欠だ。
Adequate sleep and nutrition are essential for growth during early childhood.
幼児期の言語刺激がその後の語学習得に影響することがある。
Language stimulation in early childhood can affect later language acquisition.
彼女は幼児期に海外で暮らした経験がある。
She has experience of living abroad during early childhood.