there and back

• It takes me an hour to walk there and back .
  我步行一个来回用一小时。
• It takes only a week to get there and back ...
  来回只消一个星期。
• It takes four hours to go there and back .
  往返要四个小时。
• Can i go there and back in a day ?
  我一天内能走来回吗？
• I can't stand being alone with pitt after dinner, and horses there and back will cost us twenty pounds .
  我可不能忍受饭后单独与毕脱面面相对，而且光是雇马车来回就得花掉我们二十英镑。
• We drove there and back on one tank of petrol
  我们开车到那里来回用了一油箱汽油
• We drive there and back on one tank of petrol
  我们开车到那里来回用了一油箱汽油。
• They take the space shuttle , and go there and back
  他们坐宇宙飞船往返。
• We have enough time to go there and back before lunch
  我们在午餐前还有足够的时间来回。
• You are so late . i could have been there and back by now
  你太迟了，我都可以去那里再回头了。