Dr.Chan says the WHO is no longer operating "at the level of top performance that is increasingly needed,and expected."

VOA: special.2011.01.19

So, if you look at any engineering system, the performance of that engineering system is a function of its design and its construction.

如果你们观察过工程系统，工程系统的性能就是,它的设计和构造的功能。

麻省理工公开课 - 固态化学导论课程节选

What kind of performance can we see at the theater in Harlem?

在哈莱姆的剧院里，我们能看到什么类型的表演呢？

关于黑人文化 - SpeakingMax英语口语达人

His historic performance took place ten years before black singer Marian Anderson performed at the Metropolitan Opera in New York.

VOA: special.2010.03.07

At this original performance of the mask, the Lady's speech read by the Lady Alice Egerton, age fifteen, ended at line 779 in your text.

面具》最初的表演中，这位女士的演讲由15岁的爱丽丝，埃杰顿女士朗读，在你们书上的第779行结束。

耶鲁公开课 - 弥尔顿课程节选

Rifat Atun is director of strategy, performance and evaluation at the Global Fund.

VOA: special.2010.03.10

They're aspects of demand for performance at the highest level, and at the time there is a great deal of blaming people for pursuing such things instead of humility.

它们是一方面要求最高水平的出色表现,而又时不时针对人们,追求表现而忽视谦卑的行为进行大量的批判

耶鲁公开课 - 古希腊历史简介课程节选

The first blow landed on the evening of February 8, when R&B star Rihanna cancelled her performance at the Grammy Awards ceremony.

VOA: standard.2009.12.25

What's distinctive about the South: "The South has a tradition," Said Gurganus, "Of attempting the impossible at great cost, proudly celebrating the failure, and in gaining admiration for the performance."

写的是南方的独特之处,"南方有种传统",古尔加努斯说,"付出巨大的代价挑战命运,即便失败仍非常自豪,并因此而为他人所尊敬"

耶鲁公开课 - 美国内战与重建课程节选

Koko Taylor gave her last performance on May 7 at the Blues Music Awards in Memphis.

VOA: standard.2009.06.18

Good reviews of the president's performance abroad could also bolster his political standing at home.

VOA: standard.2009.04.03