formality
n. (性质)正式,正式性;遵守礼节;例行公事;礼节,正式手续
n.拘谨,礼节,仪式,正式手续,拘泥形式
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n. (性质)正式,正式性;遵守礼节;例行公事;礼节,正式手续
n.拘谨,礼节,仪式,正式手续,拘泥形式
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