英语高手请进来也会意大利语的The train lines of many underground system tra
英语高手请进来也会意大利语的
The train lines of many underground system travel partially above ground level, becoming elevated transit lines or regular railways.Trains usually consist of a series of wagons or cars that operate on a multiple-unit system. 翻译成意大利语 最好不要用翻译工具