For example, we often want to consider: can a certain role perform a particular operation upon a specific object?(例如，我們經(jīng)常要考慮這樣的問題：特定角色是否可以對特定的對象執(zhí)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(yè)務(wù)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(zhí)行某個工作時，項目經(jīng)理仍然可以決定是否一人一個角色或者一人同時執(zhí)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(huán)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(guān)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(wù)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(zhí)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(zhí)行某些“核心的”功能，但是角色、人員配備，和所交付的服務(wù)或功能在企業(yè)和企業(yè)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(zhí)行的權(quán)限。)