单词	black bottom
释义	black bottom 1 of 2 noun 1 sometimes capitalized both Bs : a tract of low-lying land with black soil 2 often capitalized both Bs [probably from black bottom "low-lying section of a southern town occupied primarily by black people"] : an American dance popular from 1926 to 1928 with sinuous movements of the hips and rocking steps black-bottom 2 of 2 intransitive verb -ed/-ing/-s : to dance the black bottom Word History Etymology Intransitive verb black bottom
随便看	keep one's eyes peeled keep one's eyes skinned keep one's feet on the ground keep one's finger on the pulse of keep one's fingers crossed keep one's guard up keep one's hand in keep one's hands off keep one's hands off of keep one's head keep one's head above water keep one's head down keep one's lip buttoned keep one's lips buttoned keep one's mind off keep one's mind on keep one's mouth shut keep one's nose clean keep one's nose out of keep one's nose to the grindstone keep one's options open keep one's pecker up keep one's powder dry keep one's promise keep one's side of the bargain

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