An apple four hundred years ago led to the law of gravity while the apple designed by Steve Jobs has changed our life greatly.

四百年前的一个苹果带来了万有引力定律，而史蒂夫有·乔布斯设计的苹果大大地改变了我们的生活。

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While online shopping has changed our life, not all of its effects have been positive.

虽然网上购物改变了我们的生活，但并不是所有的影响都是积极的。

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They have greatly changed our life.

这些极大地改变了我们的生活。

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And each of us is here only because at some point in our lives a teacher changed our life trajectory.

WHITEHOUSE: President Obama Speaks at National Governors Association Meeting | The White House

The mission of these Islamist extremists to kill Americans and disrupt our way of life has not changed, and our efforts to defend the homeland must reflect this reality.

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This discovery, made just three years after new technology first enabled Alvin to reach these depths, changed our understanding of how life can function here on Earth, and opened entirely new fields of research.

CNN: Probing the ocean's undiscovered depths