If cycling each day can make you healthier, why not commit yourself to it and have a better life?

如果每天骑自行车可以让你更健康，为什么不承诺每天坚持骑车，过上更健康的生活呢？

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"If you do it right, we can make houses healthier, safer and more energy efficient," she said.

“如果人们使用得当，就能够让自己的家更加健康、安全以及节省能源，”她说。

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"If you do it right, we can make houses healthier, safer and more energy efficient," she said.

“如果人们使用得当，就能够让自己的家更加健康、安全以及节省能源，”她说。

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