And flying is, in many ways, much easier to automate than driving, for there are fewer obstacles and unexpected situations to navigate.

从很多方面来说， 飞行比驾驶更容易实现自动化，因为需要导航的障碍和意外情况更少。

He had to fix many issues along the way, such as handling the logistics of the events and dealing with unexpected obstacles.

在过程中， 他必须解决许多问题，例如处理活动的后勤工作和处理意外的障碍。

Indeed, people tend to dip in and out of poverty, perhaps due to unexpected obstacles like losing a job, or when hours of a low-wage job fluctuate.

事实上，人们倾向和摆脱贫困，可能是由失业等意外障碍，或者当低工资工作的工作时间波动时。