求翻译：地铁是地下的高速火车系统，主要出现在像纽约、伦敦、巴黎、北京、悉尼和东京这样的大城市。地铁比公共汽车速度快、效率高，它们可以把你送到城里的几乎任一个地段，然后你只需再步行一段距离就可到达你想去的地方。地铁票价便宜，有助于解决城市的交通问题。地铁唯一的缺点就是它经常拥挤嘈杂。是什么意思？

The subway is underground systems of high speed trains , mainly in like New York , London , Paris , Beijing , Sydney and Tokyo this city.

The Mass Transit Railway, underground, high-speed train system, mainly in New York, London, Paris, Beijing, Sydney, Australia, and big cities like Tokyo. Mass Transit Railway (MTR) than bus speed is fast, efficient, and they can be transferred to the city almost any one of the lots, and then you onl

The subway is the underground high speed train system, mainly appears is looking like New York, London, Paris, Beijing, Sydney and the Tokyo such big city.The subway the bus speed quick, the efficiency is higher than, they may deliver you in the city nearly any land sector, then you only must again

Metro is high-speed train system underground, occurred mainly in places like New York, London, Paris, and big cities such as Beijing, Sydney and Tokyo. Subway than a bus speed, high efficiency, they can take you to almost any location in the city, and then you just have to walk up a certain distance

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