Train stations and airports are crowded, babies are crying, and passengers are arguing. The same story also happens during rush hours in big cities every day. When there is a crowd, people lose their tempers（脾气）easily. What makes polite travelers suddenly forget their manners?
One of the causes is a crowded cabin（车厢）. It makes you feel a distance from your sense of self. In other words, you’re no longer yourself.
Tiredness also makes travelers lose their self-control. Think about all those traffic jams on the way to a train station, the long line waiting to enter the station and the busy phone calls from family, friends and workmates. When travelers finally get on the train, their patience has already run out.
Besides, a lack（缺乏）of sleep gives travelers a temper. If we are forces to get up early, many of us will act much more impatiently.
So, how can we make the world a better place when we’re traveling with a big crowd? Try to improve the atmosphere（气氛）. If it’s a fl
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