一、表达观点与结论

It can be said with certainty that...

可以肯定地说……（用于强调明确结论）

*例*：It can be said with certainty that good communication is key in any relationship.（可以肯定地说，良好的沟通在任何关系中都是关键。）

In my opinion, （在我看来，……）

用于陈述个人观点和理由

*例*：In my opinion, the company should invest more in research and development.（在我看来，公司应该增加对研发的投资。）

As a matter of fact, （事实上，……）

引导客观事实或数据说明

*例*：As a matter of fact, the project has exceeded its budget by 10%.（事实上，项目超支了10%）。

二、请求与建议

Could you please...

用于礼貌请求

*例*：Could you please pass the salt？（你能递盐吗？）：

*答*：No problem if I can't make it.（如果我不能来也没关系。）

Would you mind if...

询问对方是否介意做某事

*例*：Would you mind if I used your phone？（你介意我借用你的手机吗？）：

*答*：No problem if you need more time.（如果你需要更多时间也没关系。）

三、描述变化与事实

For years, ... has been seen as ... , but things are quite different now.

强调多年来的变化

*例*：For years, traditional marketing has been seen as the only way to reach customers, but things are quite different now with social media.（多年来，传统营销一直被视为接触客户的唯一方式，但现在随着社交媒体的出现情况大不相同。）

It's generally recognized that...

表达普遍认可的事实

*例*：It's generally recognized that climate change is one of the most pressing issues of our time.（人们普遍认为气候变化是我们时代最紧迫的问题之一。）

这些句式通过不同结构帮助你更精准地表达思想、提出请求或描述现象，适用于多种英语场景。建议结合具体语境灵活运用。