a waft of the hand的用法和样例：
- Flatten the dough with a press of the hand.
- Interruptions were swept aside with a wave of the hand.
- Flowers bloom and then fall on the surface of the rippling river, sending out a waft of discernable fragrance.
- He saluted his friend by a wave of the hand.
- A waft of sweet-smelling fragrance blew over from the flower bush.