The upshot of this is that players must also acclimatise to the flight of the ball.
这样的结果就是球员们必须也要适应足球的飞行。
2
But players must adjust to the ball at each World Cup, and an unpredictable flight can affect goalies as well as shooters.
但是，每届世界杯上，球员都要适应比赛用球，诡异的飞行路线影响的不仅仅是守门员，还有射手。
3
The physics points towards a curler: if the keeper isn't fully acclimatised to the flight of the ball then the bending shot gives a bigger time advantage.