其他鸟类在上升流中飞行时受到的阻力减小了，它们在推动自身前进时消耗的能量也减少了。
Other birds flying in the upwash experience reduced drag, and spend less energy propelling themselves.
这些将使进口国相信价格飞涨时也一直会有粮食可买，而且能够减少惊慌抢购，减小退回自给自足模式的压力。
These would give importing countries confidence that supplies will always be for sale when prices spike, calming panic buying and reducing pressure to retreat into self-sufficiency.
在低压力区，空气阻力减少，向后拉的力量减小，因此只需要消耗较少的能量就可维持与在前面的竞争对手相同的速度。
The low-pressure area reduces wind resistance and hence the amount of drag, which means less energy is needed to maintain the same speed as the leader.
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