seenv.看见；见到；看出；看得见；看；
seen是see的过去分词；
例如I havent seen him since the summer before last.
That\'s the best movie I\'ve seen in years.
那是我多年来看过的最好的\'电影。
They haven\'t seen each other for years.
他们彼此多年没有见面了。
It\'s easily the best play I\'ve seen this year.
这无疑是我今年看过的最好的一出戏。
