Not only could people be shuttled up and down, but so could heavy freight.

不仅人们可以上下穿梭，重型货物也可以。

Over this ballasted road mail and passenger coaches could go at high speed, and heavy freight wagons proceed in safety at a steady pace.

在这条有砟的公路上，邮车和客车可以高速行驶，重型货车可以安全地平稳行驶。

As rising renewable energy makes the power grid cleaner, India should make all of its trains run on electricity and move more heavy freight from heavy trucks to rail.

随着可再生能源的兴起使电网更加清洁，印度应该让所有火车都靠电力运行， 并将更多的重型货物从重型卡车转移到铁路上。