China has had longinterest in Africa; now China needs resources, particularly energy, and this is what Africa has in abundance.
中国长久以来都对非洲非常感兴趣。现在中国非常需要资源，尤其是能源，而这正是非洲所富有的。
2
This paper has put forward and implemented a personalized blogger modeling method that establishes a longinterest model and a short interest model for every blogger.
And the short interest model records the blogger's recent interests. If the blogger CARES about something continuously in a period of time, it will be added into the longinterest model.