They had both lost their balance at the same time.
He must have tried to go right over the top and lost his balance.
Seeing her, he lost his balance in too many ways.
I lost my balance and started to fall, all of his weight coming down on me.
She lost her balance and fell back to the ground.
He cut left but lost his balance and fell again.
He had lost his balance completely and was going over into space.
Then, far from the action, he lost his balance and fell.
Harry lost his balance and sat down on the ground.
Had he lost his balance for a few minutes, in the telling of this story?
He almost lost his footing immediately, so strong was the current.
She started to run too, and immediately lost her footing.
But when the boy turned suddenly, he lost his footing.
He half turned, then lost his footing and went down.
Twice she lost her footing and I had to reach out a hand.
For a moment, he lost his footing and came down heavily.
No one lost their footing, but it was a near thing.
Then the other must have lost his footing not too far above.
Sometimes one lost his footing, usually because of the roll.
He started toward them, lost his footing once more and went down.
A man screamed as he missed his footing and fell into the water.
Young Tucker had nearly reached the base of the pole, when once more he missed his footing.
He knew that the Ranyhyn would not miss their footing.
As she did, she missed her footing and went down.
Very near the top of the tree she missed her footing and slipped.
He missed his footing in the dark, and landed grabbing nothing.
It was taken for granted that he missed his footing.
He missed his footing on the stairs and stumbled, almost falling.
They agreed that the gentleman must have missed his footing.
The other may never miss his footing, but seldom experience joy.