look和watch有区别吗

look是不及物动词,要跟at连用,意思是"看"
例如
These flowers are good to look at.
这些花很好看.
watch是及物动词,后面直接跟名词,带有"观看,观察"的意思
例如
We watched the departure of the train from the station.
我们看着火车驶离车站.