Well, we enter when the ray hits the flat face, when we hit the plane.
当射线击中这个平面，就进入了区域。
2
Simply find a flat area near a wall or garage door that you can hit the ball against.
只要找一块平地靠近墙或是车库门，可以对着打球就足够了。
3
Sony said its electronics and device divisions turned a profit in the second quarter, but that its flat-screen TV and game chip concerns had been hit by lower prices.