Now, I recognize-- well you should recognize that this is a very simplified view of a highly complex network of interactions that takes place.
我认为,你们应当了解,这只是对一个高度复杂,协同运作的网状工作系统的简单介绍
Because it's a very intense job they have to be alert every moment.
因为是高度集中的工作,他们需要时刻保持警惕。
应用推荐