我们拥有一大批专家，他们联手工作只为实现一个共同目标：打造成出尽可能最好的语言学习工具。
We house a broad range of experts united by the common goal of creating the best language learning tools possible.
如何将设立目标渗透到终身学习中？欢迎分享任何有关于设立和实现目标的建议。
How does goal setting factor into your lifelong learning? I welcome any tips you can share about how you set and achieve your goals.
对无监督学习来说这个目标很难实现，因为缺乏事先确定的分类。
In unsupervised learning, the goal is harder because there are no pre-determined categorizations.
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