尽管仍然有人认为在阿伯丁海岸的海底储存着大约200亿桶原油，但是提炼它却更加困难，成本更高。
Although there are still thought to be around 20 billion barrels of the black stuff under the waters off Aberdeen, extracting it is getting ever more difficult and costly.
你如何能够提炼这种信息并出售它？
它只是会帮助你将想法提炼为三个大的主题框架或关键信息。
It simply helps to refine your ideas into three big themes or key messages.
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