watch是动词，意思是看，观察。watch的过去式是watched。例如：We watched a movie yesterday.昨天我们去看了电影。watch还可以做名词，意思是手表，复数是watches.

run也是动词，是跑步，运营的意思，过去式是ran，例如：She ran back into her house.她跑回屋。