And let's see what his reaction is as he's headed through 90 degrees here, and now he's going to -- when he ends up down here, he's going to be 180 degrees in the wrong direction.
我们来看看它的反应： 现在它跟原来的方向偏了90度， 现在它正要——它在这里停了下来， 它已经跟原先的方向偏差了180度。