expeditiousness

The expeditiousness of the emergency response saved many lives.

紧急响应的高效迅速挽救了许多生命。

用法提示：此处 expeditiousness 为名词，意为‘快速；迅速’，作主语。

We admired the expeditiousness with which the team completed the project.

我们钦佩团队完成项目时的高效率。

用法提示：expeditiousness 作为介词 with 的宾语，表示‘迅速’这一属性。

For a bureaucracy known for delays, their expeditiousness was remarkable.

对于以拖延著称的官僚机构来说，他们的高效简直令人瞩目。

用法提示：expeditiousness 作主语补足语，强调机构的‘快速’特点。