单词	air cushion
释义	air cushion noun 1 : an airtight inflatable cushion 2 : a mechanical device using confined air for arresting motion without shock Word History First Known Use 1807, in the meaning defined at sense 1
随便看	Singpho singphos sings sings (out) sings of sings out singsong singsong girl singsonged singsonger singsongest singsonging singsongs singsongy singspiel singspiels singspiration singular singular integral singular point singular proposition singular solution singular square matrix singular statement singular succession

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