Calling card: Small size board usually around A8, with name etc.
名片：约a 8度的纸板，载有姓名等。
There are two files with exactly the same name, “hosts”, in the etc directory!
在etc目录下有两个名称完全相同的文件，都是“hosts”！
There are two files with exactly the same name, “hosts”, in the etc directory!
在etc目录下有两个名称完全相同的文件，都是“hosts”！
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