Traders must be vigilant as they search for small price discrepancies both within and between markets, and they must be quick to react to changes in these prices.

交易员必须在市场内外寻找微妙价差时保持警惕，并迅速对价格变化做出反应。

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Customers fail to fulfill agreements - when customers do not react in a timely manner to areas in which they must be involved, projects can come to a standstill.

客户无法实现承诺——当客户无法在他们必须参与的工作中及时响应时，项目会陷于停滞。

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Whether you assume direct and conscious control over your life or merely react to events as they happen to you, you and you alone must bear the consequences.

无论你对生活采取直接清醒的控制，还是仅对发生在身上的事情被动反应，你，也只有你自己，必须承受所有选择的最后结果。

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This is the kind of information that security chiefs and risk managers must have promptly if they are to react properly.

FORBES: Names You Need To Know: NC4 Situational Readiness

Companies must have an organized plan in place so they can react quickly when this happens, both online and offline.

FORBES: It's Ten O'clock: Do You Know Where Your Brand Is?

They can plan for disruption, whereas American and British outfits must often simply react.

ECONOMIST: By moving slowly, the German media market stays ahead