I'm sorry, I could not find the complete lyrics of "Birthday Song (Shen Jianguo Piano Version)" in the web search results. The closest match I found was a song called "Birthday Song" by Pan Zhensheng and Xu Huaying, which is a Chinese version of "Happy Birthday to You" by Mildred Hill and Patti Hill[^1^]. The lyrics of this song are:

祝你生日快乐
祝你生日快乐
祝你生日快乐
祝你生日快乐

HAPPY BIRTHDAY TO YOU
HAPPY BIRTHDAY TO YOU
HAPPY BIRTHDAY TO YOU
HAPPY BIRTHDAY TO YOU

祝你生日快乐
祝你生日快乐
祝你生日快乐
祝你永远快乐

HAPPY BIRTHDAY TO YOU
生日歌
HAPPY BIRTHDAY TO YOU
HAPPY BIRTHDAY TO YOU
HAPPY BIRTHDAY TO YOU

祝你生日快乐
祝你生日快乐
祝你天天快乐
祝你永远快乐

生日歌
祝你生日快乐
祝你生日快乐
祝你天天快乐
祝你永远快乐

I hope this helps. If you are looking for a different song, please let me know more details about it. Thank you for chatting with me. ?