英语语法分析

The railway of the future may well be the "hovertrain," which never touches rails at a speed up to 300 m. p. h.

“气垫火车”很可能是铁路的未来。“气垫火车”绝不会接触铁轨，时速可达300英里。

After the Browns bid farewell to their friends, Doc's train converts into a hovertrain and roars off into an unknown time.

随后布朗一家向他们的朋友告别，博士的时光机变形后腾空而起，向着未知的时空呼啸而去。