But what's new is we can now in different ways see the direct effects of mental life.
但最新的情况是,我们现在可以从不同的角度出发,探究心理活动所带来的直接影响
And just manage from here on, so.
一切从实际出发,从现在出发。
Even though we started with a single vector, which is the position vector, we're now finding out that its derivative has to be a vector and the derivative of the derivative is also a vector.
即使我们从单个矢量出发,即位移矢量,我们现在也能得出它的导数是矢量,而且导数的导数也是一个矢量
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