emergency cord
noun [ C ] US uk/ɪˈmɜː.dʒən.si ˌkɔːd/ us/ɪˈmɝː.dʒən.si ˌkɔːrd/ (UK communication cord)
(火车上的)紧急制动索
a chain in a railway carriage that a passenger can pull in an emergency to stop the train
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