反面 fǎn miàn

ㄈㄢˇ ㄇㄧㄢˋ

NAdjHSK 7-9 TOCFL L4core 10k

1reverse side

2backside

3the other side (of a problem etc)

4negative

5bad

rén men人们bì xū必须chá kàn查看yìng bì硬币de的zhèng正fǎn miàn反面。

人们必须查看硬币的正反面。

People must examine the front and back of a coin.

你把书拿反了，这是反面，这才是正面。

You're holding the book upside-down. This is upside-down and this is right-side up.