The idea is that Americans could switch en masse to natural gas vehicles, and the country could stop importing so much oil.

该想法就是，美国可使公众换用天然气汽车，以及国家不用再进口如此多的石油。

youdao

But with energy, or food, customers have options: they can switch from oil to natural gas, or eat more chicken and less beef. There is no substitute for water, not even Coca-Cola.

但是，能源、食物消费者可以有所选择：可以用天然气取代石油或者多吃些鸡肉少吃些牛肉，而水，甚至可口可乐，却无可替代。

youdao

But with energy, or food, customers have options: they can switch from oil to natural gas, or eat more chicken and less beef. There is no substitute for water, not even Coca-Cola.

但是，能源、食物消费者可以有所选择：可以用天然气取代石油或者多吃些鸡肉少吃些牛肉，而水，甚至可口可乐，却无可替代。

youdao