hair·split·ter /ˈhærˌsplɪtɚ/
拘泥于瑣事的人,強詞奪理的人
Hair·split·ter n. One who makes excessively fine or needless distinctions in reasoning; one who quibbles. “The caviling hairsplitter.”
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hairsplitter
n : a disputant who makes unreasonably fine distinctions