当我10岁第一次看时装秀时，整个过程中我都心不在焉。

When I first saw a fashion show at age 10, I ___was ___in ___a ___dream the entire time.

她经常在会议中心不在焉，沉浸在思考中。

She often ___is ___in ___a ___dream during meetings, lost in her thoughts.

如果你心不在焉，可能不会注意到周围发生的事情。

If you ___are ___in ___a ___dream, you might not notice what's happening around you.