Oh, to be a fly on the wall of that one. What do we know, Greg?

哦，让我们成为不为人觉察的旁观者。格雷格，我们了解到了哪些信息？

A fly on the wall is someone who wants to listen to other people's conversations without being noticed.

A fly on the wall是指某人想要听到别人的对话且不被发现。

People often say, they wish they could be a fly on the wall for interesting meetings or discussions.

人们常说，他们希望自己是墙上的一只苍蝇，可以听到有趣的会议或是讨论。

You would love to be a fly on the wall in that room.

你很想成为那个房间墙上的一只苍蝇。

And they're speaking about how documentaries should be made, and we should be only like a fly on the wall and not interfere.

他们谈论的是纪录片应该如何制作，我们应该像墙上的苍蝇一样，不要干涉。

I wish I was a fly on the wall in one of those admissions offices to find out more, you know, what's going on.

我希望我是这些大学招生办公室墙上的一只苍蝇，这样我就能了解更多情况，知道发生了什么。