She seemed smaller and her voice was suddenly weak.

Her legs suddenly weak, she sank down on the closed toilet seat.

"Get me a line to Turgenev," he said in a suddenly weak voice.

"No." I put both hands on the table to brace myself; my knees seemed suddenly weak.

I dug fingers into his back to keep my suddenly weak knees from giving out.

Suddenly weak, he clutched at the back of a chair.

She leaned against the wall because her legs were suddenly weak.

A moment later the two of them had disappeared into the house, leaving me standing there in the sunshine, feeling suddenly weak at the knees.

Matt felt suddenly weak, as if he could afford weakness now.

Suddenly weak, she dropped to her knees and began to weep.