Anyway you need to fill out an order form.

不过，需要你填一个订货单。

What happens is, you get a catalog and then you call them up on the telephone, or in the old days you would mail them an order form, and they would mail you back what you bought.

发生的事情是，你得到一个目录， 然后你打电话给他们， 或者在过去， 你会给他们邮寄一份订单，他们会把你买的东西寄回给你。