In an effort to get more to keep the economy from collapsing at a time when at a time of great concern about the structure of the financial system.

在一种得到更多的努力中,预防经济在一种时期中崩溃，这个时期是,人们都很担忧,金融系统的结构。

耶鲁公开课 - 金融市场课程节选

As ETFs have exploded in popularity, they also have become the source of concern that the structure distorts prices or would break under the strain of investors bailing out en masse.

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These points concern the technical structure of a story.

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But the uncertainty of that structure sparked concern on both sides, and talks between growers and agriculture reopened.

NPR: Tentative Deal On Immigration Farm Workers