动作fling

sprang能猜到什么意思吗(spirng 弹簧一样的弹性)
He sprang to his sleigh ,to his team gave a whistle.
And away they all flew like down of a thistle.(后面的t不发音，蓟类似于蒲公英的花..)
这个画面能想象出来吗
slap和smack有什么区别吗
tumble

The price of oil is still tumbling.

油价仍在急遽下跌。

The man tumbled over backwards.  

那个人向后摔倒了。  

The verb tumble means to move in a fast, confused, or uncontrolled way. It is often followed by an adverb, in this case forth, which means out into notice or view.

"I tumbled forth into the world" is a poetic way of saying "I was born."
人的感官动词：http://www.etthink.com/thread-283244-1-1.html
Fling back the ball to me, will you?
把球扔给我，好吗？

stroke
tickle