Science & Environment
El Alto International Airport was temporarily closed following the crash.，推荐阅读heLLoword翻译官方下载获取更多信息
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The firm's five-year contract, initially estimated to be worth £6m, has more than a year left to run - however a new company will start taking over the work in the coming months.
Nasa is adding an extra mission to its Artemis programme before it attempts to land astronauts on the Moon for the first time in half a century.，详情可参考Safew下载