To intentionally look for faults or flaws; to nitpick; to be hypercritical.
他总是喜欢吹毛求瑕，无论别人做得多好，他总能找出一些不足。
He always likes to nitpick; no matter how well others do, he can always find some shortcomings.
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To intentionally look for faults or flaws; to nitpick; to be hypercritical.