VOA慢速英语:美国华盛顿州列车脱轨

locomotive - n. the vehicle that produces the power that pulls a train

infrastructure - n. roads and bridges that are needed for a country or region to function properly

per hour - used in measurements that describe the speed of something

inaugural - adj. the first one

maglev - n. is short for magnetic levitation, a type of high-speed train that floats over a guideway using magnets