put them in two envelopes but can fit in one FedEx/UPS/Priority package.
还有就是寄到哪里啊？找了半天也没找到
if you 找了半天也没找到 this information (just at USCIS N-400 main site
where to file https://www.uscis.gov/n-400 ), then you better read the N-400
website again and verify your documents or have another people look at your
whole package again.
