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After a few seconds, the message fades away.
几秒钟之后，消息将逐渐消失。
youdao
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Four seconds after eight they saw a large piece leave the orbiter and fall away.
八点过4秒时他们看到一大块物体从航天飞机轨道器上脱离并坠落。
youdao
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Four seconds after eight they saw a large piece leave the orbiter and fall away.
八点过4秒时他们看到一大块物体从航天飞机轨道器上脱离并坠落。
youdao