Correct
无头案
/ wú tóu àn /
Strokes
Example
As a Noun
intricate case without a clue; unsolved mystery
1
Suīrán
虽然
jīngguò
经过
cháng
长
shíjiān
时间
de
的
diàochá
调查
,
nā
那
jiàn
件
xiōngshāàn
凶杀案
réng
仍
shì
是
yī
一
zhuāng
桩
wú
无
tóuàn
头案
。
Although it has been investigated for a long time, the murder remains an unsolved mystery.