These will constantly change and evolve so check them and update them frequently.

这些会不断发生改变以及进展，所以要时时检查并改进。

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Our lives constantly change and these changes bring new challenges, new joys and new requirements.

我们的生活是时刻在变化的。这些变化带来新的挑战，新的愉悦和新的要求。

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In order to remain competitive a company needs to constantly change and improve its business processes.

为了保持竞争力，公司必需不断地变革，并改善它的业务流程。

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Over hundreds of years, the firm must hold its fundamentals dear, yet constantly change, he says.

ECONOMIST: What is the secret of corporate longevity?

But you have to constantly change - if a new technology comes on to the market that changes the whole safety picture then you have to cope with that.

BBC: Your questions to Gil de Ferran

For firms that constantly change chief executives, it reflects a lack of clear purpose and signals investors to stay away or sell, says David Joy, chief market strategist at RiverSource Investments.

FORBES: Why Good Management Matters