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Jyutping cing1 ceon1 nin4 waa4
Pinyin qīng chūn nián huá

Definitions (Wiktionary)
  1. phrase, idiomatic
    prime of one's life; the green years
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    汤姆为自己浪费了大好的青春年华感到非常后悔。
    湯姆為自己浪費了大好的青春年華感到非常後悔。
    tāng mǔ wèi zì jǐ làng fèi le dà hǎo de qīng chūn nián huá gǎn dào fēi cháng hòu huǐ 。
    • Tom regretted having wasted a great deal of his life.