《英语演讲Transportation.ppt》由会员分享，可在线阅读，更多相关《英语演讲Transportation.ppt（7页珍藏版）》请在三一办公上搜索。
,Transportation,Electronic Toll Collection,ETC offers the opportunity for toll facility operators to supply a substantially greater amount of traffic capacity than any other currently available form of toll collection.It saves time,fuel and improves the efficiency.,More cars,more traffic jams.,The German no speed limit highway,The traffic accident is almost inevitable,With the help of the modern transportations,we have many choices when we go outside.,But it also brings many problems,such as air pollutions,noises and ecological destructions.,
