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1·Be expert at...

在…方面是专家。

2·Look for trainers that specialize in the topic area you are interested in. Nobody can be expert at everything, or even many things.

从培训师擅长的领域，同时也是你最有兴趣的领域去评估。

3·We feel deeply that it is a sign of weakness to change out minds. Competent scientists, however, must be expert at changing their minds.

我们深深地感到改变主意是一种弱点的表现，然而，有能力的科学家必须善于改变看法。

4·The development team that handles the model may be expert at writing DB2 COBOL programs, or EJB entity beans, or some other technology appropriate for storing and manipulating enterprise data.

处理模型的开发小组可以是开发DB 2 COBOL程序、EJB实体bean或适用于存储和操纵企业数据的其他技术的专家。

5·You have to be good but not an expert at everything you do, and you have to know when to be flexible and when to ask for help.

你不需要事事都是专家，但是必须事事都能做好，并且你得知道什么时候灵活多变，什么时候寻求帮助。

6·There should be more safety training at schools in our country, said Xu Jiannong, an education expert in Beijing.

北京教育专家徐建农表示：“我们国家的学校应该进行更多的安全培训。”

7·One who is fond of or an expert at archery can be referred to as a toxophilite.

一个非常喜欢或擅长射箭的人则可称为弓术爱好者。

8·Peter Cappelli, a management expert at the Wharton School of the University of Pennsylvania, says it didn't used to be this way.

彼得·卡普利，一位宾夕法尼亚大学沃顿商学院的管理专家称它从前运行的不是这种方式。

9·You've got all these different sources and they all have they potential to be made into biodiesel or renewable diesel, said Douglas Tiffany, a biofuels expert at the University of Minnesota.

不同来源的东西都具备生产生物柴油和可再生柴油的潜力，”明尼苏达大学的生物燃料专家道格拉斯· 蒂凡尼说。

10·Xie Weida, a railway expert at Shanghai's Tongji University, says building the railway itself may be the easiest part.

上海同济大学的铁路专家谢伟达(音)说修建铁路本身是最容易的。