besides prep.
1.除…之外(还有)：
He has another car besides this. 除了这辆车外，他还有一辆。
Mary knows Japanese besides French. 除法语外，玛丽还懂日语。
2.除…之外(不再有)(用于否定句)：
I care for nothing besides this. 除此之外，我什么也不要。
No one writes to me besides you. 除你之外，没有人给我写信。
He has few friends besides us. 除了我们，他几乎没什么朋友。
用法其后除接名词或代词外，还可接动名词或名词性从句：
Besides being a teacher, he was a poet. 除了是位教师外，他还是位诗人。
Besides doing the cooking I look after the garden. 除了做饭之外我还得管园子。
Have you nothing to tell us besides what we have already heard? 除了我们已经得知的消息外，你难道没有什么可以告诉我们的吗?
I know nothing besides what I have told you. 除了我已对你说的之外，其他的我别无所知。
besides ad.此外，而且：
I don’t want to come out now, and besides, I must work. 我现在不想出去，而且我还得工作。
I have many more besides. 除此之外，我还有更多。
The task is very difficult; besides, time presses. 任务艰巨，而且时间紧迫。
摘自：《英语常用词多用途词典》（金盾出版社）besides词条