Sit with your back straight.

坐着的时候后背要挺直。

youdao

Shoot facing your subject with your back to the light.

你要背向光线拍摄你的对象。

youdao

Sit in your chair with your back tight against the chair back.

后背紧贴椅背。

youdao

one of the soldiers said to Smith. "You'll never be able to walk all those miles with that heavy pack on your back."

VOA: special.2009.12.12

The way he described is when you try to get down a quantum dimensions and you are standing there with your camera, just remember the sun is at your back and your shadow is always in the picture.

这种方法被他描述为,当你试着处理一个量子尺寸时,并且你试着拿着你的相机在那，记住太阳在你的背后,而你的影子总是在照片上。

麻省理工公开课 - 固态化学导论课程节选

Another good thing to do when you're really stuck is walk away. Take a break. Come back and look at it with fresh eyes of your own.

当你卡住的时候另外一件有益的事,就是走开休息一会儿,再回来看代码的时候你的眼睛就清醒多了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Stand tall with your shoulders back, unclench your fists and take a deep breath.

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