一统天下 Unification under heaven
Explanation
一统天下，指的是统一全国。通常指在一个王朝或政权下，将全国所有的领土都统一起来，形成一个完整的国家。它也象征着国家统一和社会安定，是中华民族历史发展中一个重要的目标。
Unification under heaven refers to the unification of the entire country. Usually refers to a dynasty or regime under which all territories of the country are unified to form a complete country. It also symbolizes national unity and social stability, which is an important goal in the historical development of the Chinese nation.
Origin Story
秦始皇嬴政统一六国后，建立了秦朝，成为历史上第一个真正意义上的统一国家。他统一了文字、度量衡，修建了万里长城，对中国历史发展产生了深远的影响。汉朝建立后，汉高祖刘邦继承了秦朝的统一局面，并进一步发展了国家，开创了汉朝的盛世。一统天下，是中华民族自古以来的梦想，也是中国历史发展的主线。
After Qin Shi Huang unified the six states, he established the Qin Dynasty, becoming the first truly unified state in history. He unified the script, weights and measures, built the Great Wall, and had a profound impact on the development of Chinese history. After the establishment of the Han Dynasty, Han Gaozu Liu Bang inherited the unified situation of the Qin Dynasty and further developed the country, ushering in the prosperous era of the Han Dynasty. Unification under heaven has always been the dream of the Chinese people and the main line of Chinese history development.
Usage
这个成语用来形容一个国家或政权统一全国，它可以用来形容历史上的朝代、政治上的统一，以及一些领域或机构的完全掌控。
This idiom is used to describe a country or regime unifying the whole country. It can be used to describe historical dynasties, political unification, and the complete control of some areas or institutions.
Examples
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秦始皇一统天下，建立了第一个中央集权的封建王朝。
qin shihuang yitong tianxia, jianlile diyige zhongyang jizhuan de fengjian wangchao.
Qin Shi Huang unified the country under his rule and established the first centralized feudal dynasty.
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汉高祖刘邦建立汉朝后，一统天下，开创了汉朝的盛世。
han gaozu liubang jianli hanchao hou, yitong tianxia, kai chuangle hanchao de shengshi
Liu Bang, the founder of the Han Dynasty, unified the country under his rule and ushered in the prosperous era of the Han Dynasty.