5 sentences

1. 我向你表示衷心的感谢。

   wǒ xiàng nǐ biǎo​shì zhōng​xīn de gǎn​xiè.

   I express my heartfelt thanks to you.

   Source: Dong Chinese Dictionary

2. 我衷心祝愿你早日康复。

   wǒ zhōng​xīn zhù​yuàn nǐ zǎo​rì kāng​fù.

   I sincerely wish you a speedy recovery.

   Source: Dong Chinese Dictionary

3. 我衷心地感谢你。

   wǒ zhōng​xīn de gǎn​xiè nǐ.

   I sincerely thank you.

   Source: OpenSubtitles

4. 我衷心感激你。

   wǒ zhōng​xīn gǎn​jī nǐ.

   You have my heartfelt gratitude.

   Source: OpenSubtitles

5. 公司全体同仁向您表示衷心的感谢。

   gōng​sī quán​tǐ tóng​rén xiàng nín biǎo​shì zhōng​xīn de gǎn​xiè.

   All the colleagues in the company express their heartfelt thanks to you.

   Source: Dong Chinese Dictionary