请问这句话中的fleet of vehicles是什么意思呢?
Most countries share the view that fleets of vehicles have significant advantages for the introduction of fuel cell powered transportation because,well obviously they can be fueled at a limited number of central locations.And,uh,and other benefits of a fleet are the opportunity to provide training for a maintenance crew and for the drivers.
没看懂为什么可以训练维修人员和司机.主要是fleet这个障碍.