4 sentences

1. 你的帮助毫无用处。

   nǐ de bāng​zhù háo wú yòng​chu.

   Your help is useless.

   Source: OpenSubtitles

2. 你的保护毫无用处！

   nǐ de bǎo​hù háo wú yòng​chu!

   Your protection is useless!

   Source: OpenSubtitles

3. 这个新工具对他来说很有用处。

   zhè gè xīn gōng​jù duì tā lái shuō hěn yǒu yòng​chu.

   This new tool is very useful for him.

   Source: Dong Chinese Dictionary

4. 有机肥和无机肥在农业生产中各有用处。

   yǒu​jī​féi hé wú​jī​féi zài nóng​yè shēng​chǎn zhōng gè yǒu yòng​chu.

   Both organic and inorganic fertilizers have their own uses in agricultural production.

   Source: Dong Chinese Dictionary