慢速英语:全球首辆氢动力列车在德国投入使用
日期:2018-09-20
Words in This Story
battery – n. device that produces and can store electricity
emission – n. something released into the air, such as a gas
sustainable – adj. able to be used without being completely used up or destroyed
practical – adj. suitable or useful for a situation
turbine – n. large machine that produces power by using gas, steam, etc. to turn a wheel
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