The design features concrete canopy structures on both sides of the tunnel - creating a large enough surface area to realise sports fields on the roof of the tunnel section.

设计的特点是隧道两侧的混凝土雨棚结构——创建足够大的表面积来实现隧道部分的屋顶上的运动场。

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So go for it, athletes. Go for the gold. Do your best. Show off, out there on the playing fields. Leave it all in the game, in the greatest display of sports the world has ever seen.

勇敢地向前吧，运动员们，去摘取金牌，尽全力拼搏，到运动场上展示你们的技巧，在这场前所未有的体育盛会上尽情挥洒吧。

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In sports fields, with passage of time, the research on self-efficacy is on the rise. Most of them focus on the relationship between self-efficacy and sports achievement as well as the fitness.

在体育运动领域，与自我效能相关的研究呈上升趋势，多围绕自我效能和运动成绩以及大众健身的关系进行研究。

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Builders are expected to start work on the playing fields by the town's sports centre this month.

BBC: Droitwich Amateur Boxing Club to build new ?200k gym

For most Americans, the Soviets were the great enemy on the playing fields of international sports during this era.

WSJ: Euro 2012: It's OK to Root for Germany

Its potential for sports fields was realized early on, but AstroTurf so dominated the artificial turf market that it wasn't until 2002 that the first in-fill field was installed in the NFL, at Seattle's Seahawks Stadium (now called Qwest Field).

FORBES: Field of Screens