Well, what I do is keep my pen moving.

嗯，我就是让笔别停下。

Well, what I do is keep my pen moving.

嗯，我就是让笔别停下。

Again the point is to listen hard while keeping the pen moving.

关键在于要很认真的听讲，然后笔下不停。

While I write my pen moves, but the paper keeps still.

我写字时，笔是移动的，纸是静止的。

And this is done exactly as Leonardo does, you can look at the way the pen moves next to the contour to make this very fine grid of parallel shading and it's absolutely what Leonardo does.

这正是达芬奇的画法，你可以看到笔从轮廓线开始移动，画出一排细细的平行影线，这绝对是达芬奇的画法。