🇬🇧 en ja 🇯🇵

infant noun

  /ˈɪn.fənt/
  • A very young human being, from birth to somewhere between six months and two years of age after birth, needing almost constant care and attention.
 赤ちゃん, 赤ん坊, 乳児, 乳飲み子, 幼児
sudden infant death syndrome
乳幼児突然死症候群
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