夸夸而谈 to boast
Explanation
形容说话浮夸，不切实际，没有真凭实据。
Describes someone who speaks boastfully and unrealistically without factual basis.
Origin Story
话说唐朝时期，有一位名叫李白的诗人，才华横溢，但他有些恃才傲物，常常夸夸而谈。一次，他与朋友们在酒楼饮酒作乐，李白兴致勃勃，滔滔不绝地讲述自己如何才华横溢，如何得到皇帝的赏识，以及将来如何施展抱负。朋友们都听得津津有味，但其中一位朋友却暗自摇头。酒过三巡，这位朋友忍不住说道："李兄，你的话固然精彩，但其中有些未免夸大其词了。"李白不以为然，继续夸夸而谈，丝毫不理会朋友的劝告。 后来，李白因为得罪了权贵，被贬官，甚至被流放，他这才明白，空有一身才华，却只会夸夸而谈，是无法成就大事的。他开始反思自己的行为，并逐渐改变了说话的风格，变得更加谦虚谨慎。
In the Tang Dynasty, there was a poet named Li Bai, who was extremely talented, but somewhat arrogant and often boasted. Once, while drinking with friends, Li Bai excitedly and endlessly talked about his extraordinary talent, how he was appreciated by the emperor, and his future aspirations. His friends listened with great interest, but one of them secretly shook his head. After a few rounds of drinking, this friend could not help but say: "Brother Li, your words are indeed wonderful, but some of them are a bit exaggerated." Li Bai didn't care and continued to boast, ignoring his friend's advice. Later, Li Bai was demoted and even exiled for offending powerful figures. He then understood that boasting and lacking practical action prevented him from achieving great things. He began to reflect on his behavior and gradually changed his speaking style, becoming more modest and cautious.
Usage
用来形容说话浮夸不切实际。
Used to describe someone who speaks boastfully and unrealistically.
Examples
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他的演讲夸夸而谈，缺乏实际内容。
ta de yanjiang kuakuāértán, quēfá shíjì nèiróng
His speech was full of empty boasts and lacked substance.
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不要夸夸而谈，要脚踏实地地做事。
bùyào kuakuāértán, yào jiǎotàshídì de zuòshì
Don't boast, work down to earth.