It was not until she left home that she realized how much her family meant to her. この英文の意味は？

Q It was not until she left home that she realized how much her family meant to her. この英文の意味は？

いっとうぉずのっとあんてぃるしーれふとほーむざっとしーりあらいずどはうまっちはーふぁみりーめんととぅはー。このえいぶんのいみは？