单词	counterflow
释义	counterflow noun coun·​ter·​flow ˈkau̇n-tər-ˌflō  : the flow of a fluid in opposite directions (as in an apparatus) Example Sentences Recent Examples on the Web Elsewhere, there is a pool with an adjustable floor and counterflow on the aft deck. Rachel Cormack, Robb Report, 7 Apr. 2021 Word History First Known Use 1870, in the meaning defined above
随便看	call something to order call the register call the shots call the shots (of) call the shots of call the tune call the tune (for) call the tune for call them like one sees them call time call time-out call to account call to arms call to order call to quarters call to worship call up call upon call-and-re call-and-response call-back pay call-board call-fire call-in call-in pay

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