seal off the launch bunker 把火箭仓库锁上 ; 关闭掩体
LS Launch Sign-Off 投产验收
Launch Sign-Off 投产验收
veer off the launch pad 偏离发射台
State Department Acting Spokesman Robert Wood says U.S.officials are in contact with regional allies and other concerned governments to try to "head off" the launch.
VOA: standard.2009.03.12
The new schedule calls for Endeavour to lift off before dawn on Wednesday, the same day that NASA had hoped to launch a separate mission to survey the moon.
VOA: standard.2009.06.16
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