你坐過地鐵嗎？你知道什么叫地鐵嗎？

Have you ever taken the subway? Do you know what subway is?

地鐵是在地底下的跑的火車，兩元錢就可以隨便坐，只要你不出地鐵口。地鐵上還有空調(diào)，可涼快了！比坐火車好多了，火車上又擁擠又熱，地鐵上不擁擠又涼快！

The subway is a running train under the ground. You can take it for two yuan, as long as you don't get out of the subway. There's air conditioning on the subway. It's cool! It's much better than taking a train. It's crowded and hot on the train. It's not crowded and cool on the subway!

坐地鐵不發(fā)生交通事故，不堵車，又快又方便，在如今交通擁堵的大都市里，地鐵確實(shí)是人們不錯(cuò)的交通工具。

Taking the subway does not cause traffic accidents, traffic jams, and is fast and convenient. In today's traffic jam metropolis, the subway is really a good means of transportation for people.

當(dāng)我第一次坐上地鐵聽到轟隆隆的響聲，看著窗外的廣告箱，我想長大以后研制出比地鐵更加舒適快捷的地鐵，讓人們享受。

When I first got on the subway and heard the rumble, I looked at the advertising box outside the window. I want to develop a more comfortable and faster subway than the subway when I grow up, so that people can enjoy it.