"The lifeblood of any business is its customers."
Art is a form of freedom.
成功辨识的关键是找到一个足够灵活的模型结构,以捕捉系统的基本特征,同时又足够简单,可以从现有数据中估计出来。
The liberal democratic system may not be perfect, but it is the best system we have.
在海洋保护中,跨国合作至关重要。鱼类不认识政治边界。