"Now it's a lot more organized." Competitors tee off from cement tee pads, working their way along a beautiful disc course that winds around cornfields, wind turbines,and a football field.

VOA: standard.2010.08.03

Those are two continuous strands that wind around each other to form the double helix.

这两股主链,相互缠绕形成双螺旋

耶鲁公开课 - 生物医学工程探索课程节选

But given the fact that this current weather system is forecast to be around for a few more days, the trouble brought on by the snow and wind will be felt well into the new week.

VOA: standard.2009.12.21