第2个回答 2012-06-09
except+verbing/noun:把noun排除在外(We all like Lily, except Lucy.除了Lucy,我们都喜欢Lily=只有Lucy不喜欢Lily)
except for+verbing/none:除非发生什么就可以达到目的了,类似条件,像unless一样(You can't go outside except for emergency,除非紧急情况,否则你不许出门)
besides:另外,除了...还有,额外(I love him, because he saved me once, besides he is so cute.我爱他,因为他救过我一次,而且(何况,另外)他还长得那么帅 )
Is that clear enough?