什么是checks-and-balance?

什么是checks-and-balance? 美国三权分立英语checks and balance 还是separation of powers? the system of checks and balance中check和balance怎么解释 Checks and balances 如何用英语解释"checks and banlances" checks and balances和mortage servicing on- and off- balance balance between risk and opportunity Recharge and balance inquiry number check and balance 准确翻译? 英语翻译Chapter1-Balance Personal balance and Exercises Couple b what's the meaning of reported balance and current balance