nán tīng
这个曲子怪声怪调的，真难听。
Zhège qǔzi guài shēng guài diào de, zhēn nántīng.
This tune sounds weird and off-key, it's really unpleasant to listen to.
开口骂人，多难听！
Kāikǒu mà rén, duō nántīng!
To open your mouth and curse at people, how unpleasant!
这种事情说出去多难听！
Zhè zhǒng shìqing shuō chūqù duō nántīng!
How disgraceful it would be to speak of such matters!