对于给定的两个文本，转换它们的格式以确保它们的简洁性和可读性。


文本1：Ah, those were the days, weren't they? when life was so much simpler.
文本2：Dear sir, it is with great pleasure that we invite you to our annual banquet.
文本1：那些日子真好，生活就那么简单。  
文本2：尊敬的先生，我们诚挚地邀请您参加我们的年度宴会。