4 sentences

1. 我从心底里感谢你的帮助。

   wǒ cóng xīn​dǐ lǐ gǎn​xiè nǐ de bāng​zhù.

   I thank you for your help from the bottom of my heart.

   Source: Dong Chinese Dictionary

2. 希望将来的某天你会打从心底原谅我。

   xī​wàng jiāng​lái de mǒu tiān nǐ huì dǎ​cóng xīn​dǐ yuán​liàng wǒ.

   I hope someday you'll find it in your heart to forgive me.

   Source: OpenSubtitles

3. 他的技术确实比我高明，我打心底里服气。

   tā de jì​shù què​shí bǐ wǒ gāo​míng, wǒ dǎ xīn​dǐ lǐ fú​qì.

   His skills are indeed superior to mine; I am truly impressed from the bottom of my heart.

   Source: Dong Chinese Dictionary

4. 他把那段痛苦的回忆深深地埋藏在心底。

   tā bǎ nà duàn tòng​kǔ de huí​yì shēn​shēn de mái​cáng zài xīn​dǐ.

   He buried that painful memory deep in his heart.

   Source: Dong Chinese Dictionary