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- 婴儿期幼年的时早期，尤指还不会走路的那一段时期
The earliest period of childhood, especially before the ability to walk has been acquired.
- 人类是在幼年开始学习第一种语言的。
Mankind learns its first language in early childhood.
- 幼年是生长迅速的时期。
Childhood is a period of rapid growth.
- 蝌蚪是青蛙的幼年形态。
Tadpoles are the infancy form of frogs.
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