英文书信的格式就和信封地址一样，也可分为平头式和缩进式两种。
Similar to the form of the address of the envelop , the form of the letter can also be divided into block form and indented form .
这是供你熟悉掌握简短的询盘书信的一般格式。
This is a short and simple letter of enquiry for you to get acquainted with the general form .
书信的格式