毁
于
一
旦
h
u
ǐ
h
u
ǐ
y
ú
y
ú
y
í
y
ī
d
à
n
d
à
n
Definitions
1. be destroyed on one day
2. be wiped out in a day
Components
毁
huǐ
–
to destroy
于
Yú
–
surname Yu
于
yú
–
in
一旦
yī dàn
–
in case (sth happens)