purse strings

n.

钱袋口上的绳子，金钱；

Purse strings
PURSE STRINGS
Purse Strings
The Purse Strings of Peace
New hands on the purse strings.
Heart Strings and Purse Strings
Holders of the Purse Strings: Governance and Performance of Public Retirement Systems
Actomyosin purse strings: renewable resources that make morphogenesis robust and resilient
Crawling cells can close wounds without purse strings or signaling.
Who controls the purse strings ☆ : A study of consumers' and retail buyers' reactions in an America's FTA environment