see/look/watch这三个的用法``和比较!有人知道吗?

SEE
及物动词 vt. 看；瞧
use your eyes
· If you shut your eyes, you can t see.
闭上眼就看不见了。
· I don't know whether I can help you; I'll have to see.
我不知道我能不能帮你的忙，我得看看再说。
· The owner of the shop came up to see what was the matter.
店老板走了过来，看看是怎么回事。
· See, here he comes.
瞧，他来了。

及物动词 vt. 看到；看见
notice (someone or something) with your eyes
· Can you see that tall building?
你能看见那 高楼吗？
· I have seen a lion.
我看到过狮子。
· She was seen to enter the house.
有人看到她走进屋里。
· He saw the thief running away.
他看见贼逃走了。
· I saw some people in the garden.
我看见花园里有一些人。
· Cats can see in the dark.
猫能够在黑暗中看见东西。
· I saw him get on the bus.
我看见他上了公共汽车。
· I haven't seen John for two years.
我有两年没有见到约翰了。

及物动词 vt. 理解；领会
understand (something)
· You see my point?
你懂