A simple face-mask and oxygen set would take care of that: there was no need for anything elaborate.
We weren’t sure if Karellen kept a watch on you, so we took somewhat elaborate precautions.
Meanwhile the car that had actually done the job continued elaborate evasive action towards the Canadian border.
He was beginning to suspect that he had been no more than bait in an elaborate trap.
The instrument he handed over on permanent loan to the World History Foundation was nothing more than a television receiver with an elaborate set of controls for determining coordinates in time and space.
Dust filters, they were generally believed to be, and elaborate theories concerning the atmosphere of the Overlords’ home bad been constructed on this slender foundation.
There are no more uses of "elaborate" in the book.
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Please elaborate on the reasons you think this is the best plan.