正
反
两
面
z
h
è
n
g
z
h
è
n
g
f
á
n
f
ǎ
n
l
i
ǎ
n
g
l
i
ǎ
n
g
m
i
à
n
m
i
à
n
Definitions
1. two-way
2. reversible
3. both sides of the coin
Components
正反
zhèng fǎn
–
positive and negative
两面
liǎng miàn
–
both sides