在UNCIS官网N400 form的页面有解释如何附上additional sheets,具体您可以查看这个页面 http://t.cn/RLQqZR3 。If you need more space to answer a question, attach another sheet of paper. Make sure you include the following information on each additional sheet of paper you submit: Your Alien Registration Number (A-Number); Any applicable dates; Application Part and Item number; and Your signature. 您可以自己做一张需要补充内容的表格,涵盖USCIS所要求的信息即可。附在申请的最后一页。