Then take action and when you get a little off track bring your vivid mental picture to the forefront of your attention.
然后行动吧,当你有点走神时,就把你生动的脑海图像放到注意的最前沿。
2
Historically, movies have been developed slowly, and seldom tackled current events, as circumstances, interest and the national mood would often change in the years it took get a picture on track.