b1 = -1.0 / 6.0
It loads sanctioned oil through a ship-to-ship transfer on the open ocean and delivers its cargo to a buyer who asks no questions. If the vessel attracts attention, it changes its name, reregisters under a different flag and starts over.
，详情可参考搜狗输入法
https://blog.fabiomanganiello.com/article/Madblog-federated-blogging-from-markdown
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