Once when mounting a step-ladder to show the upholsterer, who did not understand, how he wanted the hangings draped, he mad a false step and slipped, but being a strong and agile man he clung on and only knocked his side against the knob of the window frame.
There are no more uses of "agile" in the book.
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She is amazingly agile for someone so tall.
Her agility allows her to guard even the quickest ball handlers.