以前好像可以，我填了，寄给他们（？）。已经好多年没做过这个了，都不记得了。现在还可以吗？
-Yes.
有最近帮父母申请签证的吗？
是填了网上submit
-Submit it. Read the following websites carefully for the procedure including how to pay the fee, etc.:
http://www.ustraveldocs.com/cn_zh/cn-niv-typeb1b2.asp
http://www.ustraveldocs.com/cn_zh/cn-niv-passporttrack.asp
还是寄给父母打印件？
-You need to print out the 预约单打印件、DS-160确认页打印件 and then, send these pages to your parents.
