Once in orbit, the probes would unfold thin sails and then, propelled by powerful laser beams from Earth, set off one by one like a flock of migrating butterflies across the universe.
一旦进入轨道，这些探测器就会展开薄薄的帆，然后在来自地球的强大激光束推动下，一个接一个地出发，就好像迁徙的蝴蝶从太空掠过。
Once in orbit, the probes would unfold thin sails and then, propelled by powerful laser beams from Earth, set off one by one like a flock of migrating butterflies across the universe.
一旦进入轨道，这些探测器就会展开薄薄的帆，然后在来自地球的强大激光束推动下，一个接一个地出发，就好像迁徙的蝴蝶从太空掠过。
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