高铁为什么没有卧铺？

高速铁路是现代交通工具的重要组成部分，它的出现极大地提高了人们的出行效率。然而，许多人在乘坐高铁时却发现，高铁上并没有像传统火车那样的卧铺车厢，这让人感到很疑惑。那么，为什么高铁没有卧铺呢？

1. 列车运行时间：高铁的运行时间一般比较短，大多在几个小时左右，因此乘客在车上的时间并不长。相对于传统火车的长途卧铺，高铁乘客的需求并不大。英文翻译为：Why doesn't high-speed rail have sleeping berths?

High-speed rail is an important component of modern transportation means, which greatly improves people's travel efficiency. However, many people find that there are no sleeping berth carriages like traditional trains on high-speed trains when they ride on them, which is very confusing. So, why doesn't high-speed rail have sleeping berths?

1. Train operation time: The operation time of high-speed rail is generally relatively short, mostly within a few hours, so the time passengers spend on the train is not long.相对于传统火车的长途卧铺，高铁乘客的需求并不大。