你或许有过这样的遭遇:交通阻塞,你所在的车道纹丝不动,却看到别人的车子轻松换入旁边空车道。于是,你会因为自己无法前进、别人却在不断超越而变得沮丧或恼怒-于是,你也变道了。 You may have had such a situation: traffic jams, your lane motionless, but others can easily see the car into the empty lane next to. Then you will become frustrated or angry because you are unable to move forward while others are constantly transcendent - and you are therefore changed.