To get the ball under the bar, they must learn to aim slightly lower than normal, reducing the ball's take-off Angle by around half a degree.
为了让球在门柱下，他们必须学着瞄准得比往常烧低一些，将球的起飞角度降低半度左右。
2
In fact we seem to oscillate several times over a normal day, from higher to lower focus and then back to higher, until we drop off at last into sleep.