HSK 7-9
当之无愧
dāngzhīwúkuìfully deserving, without any reservations (idiom); entirely worthy (of a title, honor etc)
她是当之无愧的最佳球员。
Tā shì dāng zhī wú kuì de zuì jiā qiú yuán.
She fully deserves to be called the best player.
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Appears across levels (7-9) in the HSK 3.0 word list.