And we're going to have q2 prime, and we're going to draw the arrows in the positive direction in these cases.

还有q2一撇，在这个例子中,我们把箭头朝正方向。

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That's what this arrow at the right shows, the direction of the flow of information.

这就是右边这个箭头的含义,即信息流动的方向

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