系统性重要银行,的英文怎么说?有人说是systematically important,总感觉怪怪的,有点生硬的感觉.

"systematically important..." 当然是怪怪的...因为用错了副词!
"systemically important (financial institutions/banks)..." 才是正确的副词:
例句:
1."A researcher at the Federal Reserve Bank of Cleveland is proposing a three-tiered system for regulating systemically important financial institutions."
2."These measures include the methodology for assessing systemic ...moral hazard posed by global systemically important financial institutions."
3.These institutions are often referred to as “systemically important financial institutions” or SIFIs.
4.Much of the Dodd-Frank discussion revolves around the economic distortions and disruptions caused by the largest and most complex financial companies,the so-called systemically important financial institutions,or SIFIs.

这样的说法还是很专业的，只是很少这么说，所以觉得生硬。