然而在实际应用存在一个很重要的问题就是用户的多兴趣问题。
In practice, however, there is a very important issue that is multi-user interest in the issue.
强化学习是一种重要的机器学习方法，然而在实际应用中，收敛速度缓慢是其主要不足之一。
Reinforcement learning is an important machine learning method. However, slow convergence has been one of main problem in practice.
然而在实际应用中，它又存在着许多变异用法，常常超越第一人称复数这一语法范畴，具有特定的修辞意义。
However, in practice, may variant usages about "we" are used. Often going beyond the grammar category the plural forms of the first personal pronoun, "we" has some special rhetoric meanings.
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