模仿句子：Sweden, Switzerland, Denmark, Japan, the eurozone and more recently Hungary have all introduced some form of negative interest rate policy with key rates there dipping below zero.

翻译：瑞典、瑞士、丹麦、日本、欧元区以及近来的匈牙利都出台了某种形式的负利率政策，也就是关键利率下调到零以下。