单词	countdown
释义	countdown /ˈkaʊntdaʊn / noun 1An act of counting numerals in reverse order to zero, especially before the launching of a rocket or missile: the missiles' launch crews would begin their final countdown... In Florida today, NASA beginning its countdown for the first space shuttle launch since the Columbia disaster more than two years ago. A series of meetings will take place Thursday to discuss the problem and determine the steps necessary to get back into the launch countdown. Dr. Kraft worked to develop the countdown, launch, and flight procedures, as well as the design of Mission Control itself at the Cape and later in Houston. 1.1The period of time leading up to a significant event and the procedures carried out during this time: the countdown to your holiday... As the countdown to war continues Britain can be expected to contribute at least 12,000 troops as well as RAF, Navy and Special Forces units. He was forced to redraft this advice as the countdown to war continued. We are fast approaching the countdown to our big event. 1.2A digital display that counts down: a key toggles the countdown on and off... I will never employ any device with a digital countdown. I notice a digital countdown projected below the Napoleon-guy: 1.69, and quickly descending. A countdown is displayed over the grenade, and you see the exact trajectory it will take.
随便看	half-g half gainer half-grown half-handle half-hardy half-hearted half-heartedly half-heartedness half hitch half holiday half-hose half hour half-hourly half-hunter half-inch half-integer half-integral half-island half-jokingly half landing half-lap half-length half-life half-light halfling

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