While it may be common for university researchers to try their luck in the commercial world, there is very little traffic in the opposite direction.
虽然大学研究人员在商业领域碰碰运气可能很常见，但反过来的情况却很少。
2
Think of the controller as the air traffic controller at an airport, giving direction to the coming and going of aircraft.
我们可以将控制器想象为机场的空中交通控制器，指挥飞机的进出方向。
3
Adaptation had a similar surprise attack, but the Coen brothers are more cunning — showing traffic clear in one direction before cutting to the car barreling toward the camera.