令我们沮丧的是，我们的旅行计划不得不取消。

To our ___dismay, our travel plans had to be cancelled.

令我非常失望的是，我到处都找不到那份重要文件。

Much to my ___dismay, I couldn't find the important document anywhere.

听到复杂的新规定，团队充满了沮丧。

The team was filled with ___dismay upon hearing the complex new regulations.