The slump on Wall Street set up a chain reaction in stock markets around the world.

华尔街股价暴跌在全球股票市场上引起了连锁反应。

《牛津词典》

They break up nature's food supply chain.

它们破坏了大自然的食物供应链。

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To represent that chain of events, a long line of oversized, brightly painted dominoes has been set up running for one-and-a-half kilometers in an area where the Wall once stood.

VOA: standard.2009.11.09

The other chain is facing in the other direction, the 3' carbon is up, the 5' carbon is down.

对面的那条单链方向相反,3'位的碳原子向上,5'位的碳原子向下

耶鲁公开课 - 生物医学工程探索课程节选

They're colored different here to indicate one new difference that you know about now, and that's that there is an orientation, there's an up and down on the chain.

这里被涂成不同的颜色,来表示另一个不同之处,它是有方向的,表示双链一条向上,一条向下

耶鲁公开课 - 生物医学工程探索课程节选

The PDE immediately switched over to a back-up chain, and it also shut itself down just in case the anomaly was a problem in the electronics rather than in the physical system itself.

BBC: NEWS | Science/Nature | Space truck orbits despite fault

Most women are reporting to men, and that increases as we advance up the chain.

FORBES: Why Men Hate To Give Women Feedback

"I just want to know how far up this chain you're going to go, " said Sen.

CNN: Rumsfeld tells Congress of his 'failure'