🇬🇧 en pt 🇵🇹

countdown noun

  /ˈkaʊntˌdaʊn/
  • (astronautics) A count backward in fixed units to the time of some event, especially the launch of a space vehicle.
 contagem regressiva
  • (astronautics) The acts of preparation carried out during this period.
 contagem regressiva, retrocontagem
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