13号的星期五是个不幸的日子。
十三号星期五之所以被视为一个不幸的日子，似乎有两个主因。
There seem to be two main reasons why Friday the 13th is regarded as an unlucky day.
——太阳落了还会升起，不幸的日子总有尽头，过去是这样，将来也是这样。
Day the sun will rise, unfortunately there is always at the end of the past is so, so in the future.
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