For example, we often want to consider: can a certain role perform a particular operation upon a specific object?(例如，我們經常要考慮這樣的問題：特定角色是否可以對特定的對象執行特定的操作？)

It is implied by the directive, that there is a business role within the bank called "teller" and that people perform that role.(這個指示暗示銀行中有稱為“出納員”的業務角色并有擔任這個角色的人。)

A single person or a team could perform the user role.(一個人或一個團隊可能擔任一個用戶角色。)

When actually performing this work in a project, a project manager can still decide whether to assign one person per role or to have that person perform several roles at the same time.(實際上，當在一個項目中執行某個工作時，項目經理仍然可以決定是否一人一個角色或者一人同時執行多個角色。)

The roofs covering a portion of the building perform a role that is both symbolic and environmental.(屋頂只覆蓋了建筑的一部分，起著象征和環保的作用。)

They perform a crucial and valuable role but our survey shows the NHS is playing a high risk game by relying on these overseas staff to commit long term to the NHS.(巴肯說：“這些人在實際工作中扮演著至關重要且卓有成效的角色，但我們的研究顯示，NHS指望這些人長期為其提供服務的做法不啻于在玩一種具有高度危險性的游戲。”)

Aluminum panels are incorporated into this skeleton to form a positive connection and perform a load-bearing role.(鋁面板納入本骨架，形成一個積極的連接，并執行一個承重的作用。)

And experts say that for some people, stuttering disappears when they speak to infants or animals, imitate a foreign dialect, or perform a role onstage.(專家說，對一些口吃者來說，跟嬰兒或動物說話，模仿外國口音，或者上臺表演時，口吃會消失。)

While there are certain "core" functions that the majority of EPMOs perform, the role, the staffing, and the services or functions delivered vary to a surprising degree from one enterprise to another.(雖然大部分EPMO都執行某些“核心的”功能，但是角色、人員配備，和所交付的服務或功能在企業和企業之間有令人驚奇的差別。)

A role can represent multiple users, but it also represents the permissions that a set of users can perform.(一個角色可以代表多個用戶，但它也代表一個用戶集可以執行的權限。)