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用“launchpad”造句大全，launchpad造句

用“launchpad”造句大全，launchpad造句

2017-04-18
Here,theshuttleismountedonamobilelaunchpadweeksbeforeitsliftoff.Inamajesticeveningceremony,theShuttlewastransportedfromthe52-storyVehicleAssemblyBuildingtothelaunchpad.Lift-offfromafloatinglaunchpadse...