3 sentences

1. 我爸爸才不是废物！

   wǒ bà​ba cái bù shì fèi​wù!

   My dad's no loser!

   Source: OpenSubtitles

2. 他总是骂自己的儿子是个废物。

   tā zǒng​shì mà zì​jǐ de ér​zi shì gè fèi​wù.

   He is always calling his son a good-for-nothing.

   Source: Dong Chinese Dictionary

3. 我们要学会将废物回收利用。

   wǒ​men yào xué​huì jiāng fèi​wù huí​shōu lì​yòng.

   We should learn to recycle and reuse waste materials.

   Source: Dong Chinese Dictionary