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Jyutping zeoi1 gan1 sou3 jyun4
Pinyin zhuī gēn sù yuán

Definitions (CC-CEDICT)
  1. to pursue sth back to its origins
  2. to trace back to the source
  3. to get to the bottom of sth
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    若追根溯源,绝大多数美国人都是移民。
    若追根溯源,絕大多數美國人都是移民。
    ruò zhuī gēn sù yuán , jué dà duō shù měi guó rén dōu shì yí mín 。
    • Most Americans are descended from immigrants.
  2. Mandarin
    如果追根溯源的话,绝大多数美国人都是移民。
    如果追根溯源的話,絕大多數美國人都是移民。
    rú guǒ zhuī gēn sù yuán de huà , jué dà duō shù měi guó rén dōu shì yí mín 。
    • Most Americans are descended from immigrants.
Examples (Wiktionary)
  1. Mandarin
    追根溯源,要换换思路了。
    追根溯源,要換換思路了。
    zhuī gēn sù yuán , yào huàn huàn sī lù le .
    • Another way of thinking is required to get to the root and trace the source.