My friend, who was in charge, was over-taxed, and I came down to help her.
His powers, both mental and physical, had evidently been over-taxed.
The Senator has over-taxed himself a little, that is all, and needs rest.
Her strength had been over-taxed by the emotions of the last few days, and it suddenly gave way.
The limits of my endurance had now happily been reached, the ...