tied to somebody’s apron strings
US /taɪd tu ˈsʌm.bɑː.diz ˈeɪ.prən strɪŋz/
UK /taɪd tu ˈsʌm.bɑː.diz ˈeɪ.prən strɪŋz/

1.
離不開他媽媽, 過於依賴
to be too dependent on someone, especially one's mother
:
•
He's still tied to his mother's apron strings, even though he's 30 years old.
他都30歲了,還離不開他媽媽。
•
It's time for him to cut the cord and stop being tied to his mother's apron strings.
他該獨立了,別再離不開他媽媽了。