He stood there, head back, framed against the blue sky.

他站在那里，头向后仰，衬托在蓝天下。

《牛津词典》

youdao

youdao

Even if U.S.economic output expands in 2010 and more Americans head back to work, both critics and supporters of the president say the nation faces a more serious challenge to future economic viability: a rapidly growing deficit and a national debt estimated at more than $12 trillion.

VOA: standard.2010.01.15

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.

FORBES: GM Returns To Facebook Ads; Will Super Bowl Be Next?

If you do, head back here and let us know how you got on.

ENGADGET

With future and ancient civilizations taken care of, lets head back out into space.

ENGADGET: Alt-week 9.8.12: Moon farming, self powered health monitors and bringing a 50,000 year-old girl to life