head back

基本解释

Positioning: Tilting your head back straightens out the line to your stomach.
定位：头向后倾让喉咙到胃的通道变直。
Don't work right up until the moment you leave and head back to work right off the plane.
不要一直工作到休假的前一刻才离开，也不要休假回来刚下飞机就急着回去干活儿。
Open the airway by placing one hand on their forehead and gently tilting the head back while lifting the chin.
把一只手放在他们的前额慢慢的把头向后倾，同时抬高下颚以确保呼吸顺畅。

The elephants look up and watch as your boat turns away and you head back to camp at the end of another day on safari in Africa.
And they said to one another, "Let us head back for Egypt."
他们一个对另一个说着“,“让我们回埃及去“
耶鲁公开课 - 旧约导论课程节选
So if you've ever seen or used an old school typewriter, you might recall that when you're typing something out on an old mechanical typewriter, - when you like hit the char-- when you hit the enter key to move the head back to the left hand side to the next line or you would pull down some lever, it was really a two part process.
如果你们有谁曾经看过或用过老式打字机，可能还记得，当你在,这种老式打字机上打字的时候，当你-,敲入回车键，跳转到,下一行的最左边，或者,拉一下杆，这个需要两步走。
哈佛公开课 - 计算机科学课程节选

And a decision to head back into Super Bowl advertising could be in the offing.
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