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1. Goodbye to those we thought would never abandon us.对一直陪伴我们的人说再见。
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2. And when these changes finally do occur,when the familiar has departed,and the unfamiliar has taken its place,all any of us can really do当这一刻来临时，身边的朋友相继离去，新面孔陆续出现，我们能做的也只有。
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3. is to say hello...说一句你好。
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4. and welcome.道一声欢迎。