Direction; direction menu item shows a compass and Kaba Sharif direction by an arrow line from the center of compass.

方向；方向菜单项显示一个罗盘和卡巴谢里夫方向的箭头线的中心指南针。

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As shown in Figure 10, a dotted line with a closed, unfilled arrow means realization (or implementation); as we saw in Figure 4, a solid arrow line with a closed, unfilled arrow means inheritance.

如图10所示，一条带有闭合的单向箭头的点线意味着实现(或实施)；正如我们在图4中所见到的，一条带有闭合单向箭头的实线表示继承。

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We know inheritance is not being shown here, because the line with the arrow is dotted and not solid.

我们知道继承在这里没有被显示，因为与带箭头的线是点线而不是实线。

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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。

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