/ˈnætʃrəl ˈɪnfənsi/ – Phrase
Definition: tuổi hài nhi.
A more thorough explanation: “Natural infancy” refers to the legal status of being a minor due to being under a certain age, typically under the age of majority. This term is used to describe the period of childhood before a person reaches the age of legal adulthood, during which they are considered to lack the full legal capacity to enter into certain contracts or make certain decisions.
Example: The baby’s natural infancy was a time of wonder and discovery.