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1.She was so deeply in love with him that she couldn't imagine living without him.
她深深地爱上了他，以至于无法想象没有他的生活。
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2.He was so dead gone in love with her that he didn't even want to leave the house.
他对她的爱已经到了无法自拔的地步，甚至不想离开家。
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3. They were so dead gone in love that they decided to get married right away.
他们的爱情如此深厚，以至于他们决定立刻结婚。