（1）手：这是hand最常见的意思：
常用的有如下的词组用法：
By hand 用手，手工的；
Example：He makes the bench by hand.
At hand 在附近，在手边；
Example：Keep your dictionary at hand.
On hand 在手上，在身上；
Example：Do you have any money on hand?
in hand / out of hand：可控的/失控的；
Example：All things are in my hand.
Some things are out of his hand.
wash one's hands of sth.：洗手不干某事了；
Example：He washed his hands of theft.
lend sb. a hand：帮助sb. = Help sb. = Do sb a faver.
（2）钟或者机器的指针
Hour hand ：时针
Minute hand：分针
Second hand：秒针
脑筋急转弯：
Which one of the three above is the oldest?
（3）传递 v.
hand down 把……传下去（一代一代的传下去）
hand in 交上：Hand in your exercises right now.
hand over 移交；
hand out 分发；