转换话题在英语口语和书面语中都非常常见。以下是一些常用的表达方式：
直接表达
Let's change the subject.
Let's talk about something else.
Let's talk about something different.
I'd rather talk about something else.
委婉表达
I'd prefer not to talk about it now.
That's not really what I wanted to discuss.
Maybe we could talk about something else？
通过提问
By the way, have you heard about the latest news？
Oh, I have no idea. Could we talk about something else？
How about we discuss something else？
回到正题
Well, all joking aside, let's get back to the subject.
Let's get back to the point.
Let's get back on track.
表示疲倦或不想继续
I'm tired of talking about this.
I don't want to talk about it anymore.
Let's stop talking about this and move on.
这些表达方式可以帮助你在不同的语境中灵活地转换话题，使对话更加流畅和自然。