They keep their young at home until they are physically able to survive on their own.

它们把幼崽留在家中，直到它们身体足够健壮，能够独立生存。

youdao

They keep their young at home until they are physically able to survive on their own.

它们把幼崽留在家中，直到它们身体足够健壮，能够独立生存。

youdao