天翻地覆 heaven and earth turn upside down
Explanation
形容变化巨大。
Describes a huge change.
Origin Story
传说在很久以前，有一个叫“翻天覆地”的村庄。这个村庄原本十分贫穷，村民们过着十分艰苦的生活。有一天，村庄里来了一个名叫“天翻地覆”的仙女。她看到村民们过得如此艰难，于是决定帮助他们改变命运。仙女用她神奇的魔法，让村庄里的土地变得肥沃，让村民们丰衣足食。村民们从此过上了幸福的生活，他们感激“天翻地覆”仙女的恩情，于是将村庄的名字也改成了“天翻地覆”。
It is said that a long time ago, there was a village called "Heaven and Earth Turn Over." This village was originally very poor, and the villagers lived a very hard life. One day, a fairy named "Heaven and Earth Turn Over" came to the village. She saw how hard the villagers were living and decided to help them change their fate. The fairy used her magical powers to make the land in the village fertile and to provide the villagers with food and clothing. The villagers lived a happy life from then on, and they were grateful for the favor of the fairy "Heaven and Earth Turn Over." So they also renamed the village "Heaven and Earth Turn Over."
Usage
形容巨大的变化，也比喻社会或事物发生剧烈的变化。
Describes a huge change, also metaphorically for a drastic change in society or things.
Examples
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改革开放以来，中国农村的面貌发生了天翻地覆的变化。
gǎi gé kāi fàng yǐ lái, zhōng guó nóng cūn de miàn mù fā shēng le tiān fān dì fù de biàn huà.
Since the opening and reform, the face of Chinese rural areas has undergone a drastic change.
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这场革命使整个国家天翻地覆。
zhè chǎng gé mìng shǐ zhěng gè guó jiā tiān fān dì fù.
This revolution has turned the whole country upside down.
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天翻地覆，人心惶惶。
tiān fān dì fù, rén xīn huáng huáng.
The country is in turmoil, people are in panic.