has been doing 现在完成进行体 ; 现在完成进行时
Has been doing sth 一直做某事
Doing this has theoretical significance 做这件有理论意义
has trouble in doing sth 在某方面有麻烦
Not officials,locals." Oliver Williamson has studied big companies and found that they often are better than markets at doing complex jobs.
VOA: special.2009.10.16
With them she can occupy all these different roles, and in doing so she has access to certain kinds of knowledge.
通过这些她可以,扮演各种各样的角色,也可以让她,获得某种知识。
and a little bit about your own biography which has so much influence on the work you're doing today.
再谈谈您自己的经历,因为它极大地影响着您目前从事的工作。
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