a rate (usually rapid) at which something happens; "the project advanced with gratifying speed" 同義詞:speed, fastness,
其他語種釋義
swiftnessとは意味:swiftness n. 迅速さ. 【形容詞 名詞+】 ◆with surprising swiftness あっという間に. 【前置詞+】 ◆The project was completed with unexpected swiftness. その企畫は思いもよらない速さで完成した. 【+前置詞】 ◆They were startled by the swiftness of his res...