escrow

n.契约(由第三者保管、待条件完成后始能生效)

v.将 ... 暂交第三者保管以待条件实现

This might involve key escrow, back doors into a system, or other methods. 这可能涉及密钥契约、在系统中开后门或其它方法。

The car seller agreed to escrow the sum of $2 000 with her attorney. 售车人同意将2 000美元暂交其代理人保管。