快速交替按下方向键左右，小人就会开始跑步，此时，玩家可以发现画面左上方的圆盘中，指针开始顺时针方向运动。

Quick turn around key press, bad people will begin to jog at this time, the player can be found in the top left picture disc, pointer began a clockwise dir.

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点选右上方的锚点，用键盘方向键将它移动至中心点的位置，你将得到一个等腰三角形。

Click on the top right anchor point once, and using the arrows on your keyboard move it until it meets with the center point, you should end up with an isosceles triangle.

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So in a moment you're going to go ahead and hit the spacebar and then as things fall from the screen when they line up with the left arrow, hit the left arrow with a different arrow, hit that arrow and see how good a score you can get.

一会儿你走到前面，敲一下空格键,当屏幕上面的东西从左边往下掉的时候,你就敲一下键盘上的左键,是哪个方向，敲对应的方向键就可以了,我们来看看你能得多少分。

哈佛公开课 - 计算机科学课程节选