[核 心 单 词]
perform vi.表现;性能(如何)vt.履行;执行;演出
[经典例句]but those who frequently deal with many things at the same time were found to perform the worst at the actual multitasking test.(2013·北京·阅读理解d)
但是那些经常同时处理许多件事的人被发现在实际的多重任务处理测试中表现地最差。
(1)perform the role of 扮演……角色
perform a... role in 在……中起……作用
perform an operation 进行手术
perform one's duty/promise 尽责任/履行承诺
(2)performance n. 执行;表演;履行
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