precocious
🇺🇸
/prɪˈkəʊʃəs/
🇬🇧
/prɪˈkəʊʃəs/
being more advanced or skilled at a young age than is usual
The child's ability to read and write at such a young age is considered precocious.
这个孩子在这么小的年龄就能读写,被认为是早熟的。