But things are starting to change. New legislation that's been introduced in the U.S.Congress would require all states to implement what's called a "Graduated Driver Licensing" system.

VOA: standard.2010.06.24

So, the system that gets designed in order to implement the cruise control

而那个为了实现恒速控制的系统，

在学校的经验 - SpeakingMax英语口语达人