5 sentences

1. 父母辛辛苦苦供我读完大学。

   fù​mǔ xīn​xīn​kǔ​kǔ gōng wǒ dú wán dà​xué.

   My parents worked hard to support me through college.

   Source: Dong Chinese Dictionary

2. 辛辛苦苦写的文档没保存，真让人郁闷。

   xīn​xīn​kǔ​kǔ xiě de wén​dàng méi bǎo​cún, zhēn ràng rén yù​mèn.

   It's really frustrating that the document I worked so hard on wasn't saved.

   Source: Dong Chinese Dictionary

3. 她辛辛苦苦几十年，终于把几个孩子都养大了。

   tā xīn​xīn​kǔ​kǔ jǐ​shí nián, zhōng​yú bǎ jǐ gè hái​zi dōu yǎng​dà le.

   She worked hard for decades and finally raised all her children.

   Source: Dong Chinese Dictionary

4. 他辛辛苦苦攒了三年的钱才买得起这台电脑。

   tā xīn​xīn​kǔ​kǔ zǎn le sān nián de qián cái mǎi​de​qǐ zhè tái diàn​nǎo.

   He worked hard for three years to save enough money to afford this computer.

   Source: Dong Chinese Dictionary

5. 他辛辛苦苦工作了一辈子，终于供孩子们读完了大学。

   tā xīn​xīn​kǔ​kǔ gōng​zuò le yī​bèi​zi, zhōng​yú gōng hái​zi​men dú wán le dà​xué.

   He worked hard all his life and finally supported his children through college.

   Source: Dong Chinese Dictionary