Correct
密件
/ mìjiàn /
Strokes
Definition
secret documents/abbr. for 机密文件
Example
As a Noun
confidential paper/letter; classified matter/material
1
Fà
发
/
xiě
写
mìjiàn
密件
post/write a confidential paper
2
Yī
一
fèn
份
/
gè
个
mìjiàn
密件
a confidential paper