a deformity of the hand的用法和样例：
- A hump is caused by a deformity of the spine.
- This deformity of the hand is due to rheumatoid arthritis (RA).
- Flatten the dough with a press of the hand.
- He was born with a slight deformity of the feet which made him limp.
- Myotonia of the extremities only causes spastic deformity of the hand or foot.
- Interruptions were swept aside with a wave of the hand.