The term is sometimes a friend will become familiar with, because the identity, status changes, we have alienated a lot of people, or not close.

朋友这个词有时会变得陌生，因为身份、地位的改变，我们疏远了很多人，或是不敢靠近。

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Clinton's grand jury appearance, she was asked, according sources familiar with her testimony, about discussions right after Foster's death with her close friend Susan Thomases and her chief of staff, Margaret Williams.

CNN: Notes Seem To Contain No Bombshells