third-rail system
常见例句
- According to Environment America, high-speed rail uses a third less energy per mile than auto or air travel, and a nationwide system could reduce oil use by 125 million bbl. a year.
根据美国环境署资料，高铁和汽车或者飞机相比每公里使用能源最少，而一个全国范围的系统将能每年减少使用1.25亿桶的石油。 返回 third-rail system