Shegoestoschoolbyunderground.她乘地铁上学.
Shetakestheundergroundtoschool.她乘地铁上学.
Shetransportsherselftoschoolbyunderground.她用地铁将自己送去学校
英式的地铁是underground,美式的地铁是subway.
Shegoestoschoolbysubway.
Shetakesthesubwaytoschool.
Shetransportsherselftoschoolbysubway.
第三句是很生硬的句式.学生日常通常都用前两句.希望能帮到你.
