If I wanted to improve the car significantly I would have to pull it apart and start again.

如果我想大大提高这辆车的性能，我就得将它拆开来重新组装。

《柯林斯英汉双解大词典》

Pull on the thread of truth and all sorts of things will start to unravel.

真相和所有类型事情的线索也即将开始逐渐拉开。

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To make this a pull system, it needs a mechanism allowing the downstream process to somehow signal the upstream process to start working.

而为了使其变成拉动式系统，还需要一种机制来使下游工序以某种信号通知上游工序开始工作。

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If you want to pull out of the euro you have to start thinking of the practicalities.

BBC: Greece: How do you save an economy from going bust?

And when trading partners start to pull away, a rapid chain reaction can begin.

ECONOMIST: JPMorgan Chase takes over

Just as in the corporate environment, a lot can happen when you start to pull on a loose thread.

FORBES: More Details Emerge On 'Sextortion' Hacker Suspect