hang up結束通話、拖延、把…掛起來抵押、賒帳學術名詞掛：舞蹈懸：舞蹈掛斷電話：舞蹈突停：電子工程意外停機：資訊切斷：通訊工程收線：通訊工程英文釋義put a telephone receiver back in its cradlecause to be hanging or suspendedinterrupt a telephone conversation