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钉是钉,铆是铆(釘是釘,鉚是鉚)
◎ 钉是钉,铆是铆 dīng shì dīng mǎo shì mǎo
[be accurate in what one works;be conscientious and meticulous] 形容办事认真,一丝不苟。也作“丁是丁,卯是卯”