besides = 而且except for = 除…之外不能用except是因为except 的后面一定是个句子例如 ： I received nothing except what was due to me.what was due to me是个句子用except for是因为 except for 的后面一定...besides不是也有除…之外的意思吗？但besides 是肯定句的except for 和 except 是否定句