这个项目确实很有挑战性，但我们会完成的。

This project is ___indeed challenging, but we'll get it done.

她很聪明, 而且确实, 她的创造力也令人惊叹。

She is intelligent, and ___indeed, her creativity is also amazing.

“他辞职了。” “真的吗？这太突然了！”

"He quit his job." "___Indeed? That's so sudden!"