当飞机垂直起飞时，飞马发动机前后四个喷管转到垂直向下的位置，在喷气反作用力的作用下产生向上的推力，使飞机垂直上升；
When the plane tries to take off vertically, the Pegasus engine's four jettube will turned to face the ground so that the whiff will raise the aircraft.
如果你不得不向上或者向下看，调整显示器的位置。
If you have to look up or down, move the display. This goes for placement of paper documents as well — you shouldn't have to crane your neck to see them.
他在正确的位置上挤毒液，用力刚刚好，挤出适量毒液。毒牙里的毒液向下滴，进入了采集罐。
He squeezes just enough, and in just the right spots, to allow the venom to run down the fangs and into the collection tube below.
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