undisclosed reserve

• 秘密准备金

undisclosed reserve的用法和样例：

例句

1. Vietnam's central bank raised the deposit reserve ratio recently.
   越南中央银行最近提高了存款准备金率。
2. The issue of Hong Kong currency must be backed by a 100 percent reserve fund.
   港币的发行须有百分之百的准备金。