给定一封电子邮件的文本，使用至少五个不同的单词替换文本中的某些单词，并解释每个新单词的含义。 


Hi John,
I hope you're doing well. Just wanted to check in and see how the project is going. Let me know if there's anything I can do to help. Thanks,
Sarah
Hi John,

I trust you're doing fine. Just wanted to follow up and see how the assignment is moving forward. Inform me if there's anything I could assist you with. 
Best regards,
Sarah