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Traffic lights are crucial tools for regulating traffic flow .

交通信号等是调节车流的关键手段。

Thus , price is the regulating mechanism in the american economic system .

因此，价格体系是美国经济系统中的调节机制。

It plays an importantrole in regulating climate and is critical for many animals .

海冰在调节气候方面发挥着重要作用，并且影响着许多动物们。

Your body can help you stay properly hydrated by regulating the amount of water in your system .

你的身体可以帮助你正确保持合适水合物靠调节水量在你的系统中。

By regulating run-off , trees help guarantee water-supplies and prevent natural disasters , like landslides and floods .

通过调节径流，森林可以含蓄水源，防止滑坡和洪水等自然灾害。