There existed in most territories of medieval England a compulsory and collective pledge system, named frankpledge.
英
美
- 摘要中世纪英格兰曾广泛推行过一种强制性的集体担保制度，即十户联保。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
