apron string n.
围裙带,支配,控制
apron string[ noun ]
(usually used in the plural) a cord used to tie an apron at the waist
<noun.artifact>
Apron string \A"pron string`\
The string of an apron.
{To be tied to a wife's apron strings} or {To be tied to a
mother's apron strings}, to be unduly controlled by a wife or
mother.
He was so made that he could not submit to be tied
to the apron strings even of the best of wives.
--Macaulay.