As I look back several years ago, my backpack must have weighed in at over50lbs.
回首我的前几年，我背包的重量至少也得50磅以上。

If we look back at history we can see that mankind has continuously been at war.
如果回顾历史，我们会发现我们人类的战争不断。

This can be seen if you look back at the previous topic, Strength and Endurance.
这可以看出，如果你看看以前的主题，强度和耐力回来。

You as a parent will wistfully look back at all their abandoned childhood things.
你作为父母将忧心的回顾那些被遗弃的童年故事。

And you turn around, and you look back into the space, and some people talk aloud.
你会转身朝屋里看 有些人边看还边叫

Bertha found it possible to look back upon the past with something like amusement.
伯莎发现可以象逗趣一般地回忆某些往事。

I stood on the bow, overlooking the sea, began to look back on18 years bit by bit.
我站在船头，远眺大海，开始回首18年来的点点滴滴。

Look back at General Motors and Ford Motor's credit rating history, it at a glance.
回顾一下通用汽车和福特汽车的信用评级历史，便一目了然。

Look back to hope to go to, you would still in that you the place that I acquaint with?
回首望去，你还会在那个你我熟悉的地方吗？

Naeko did not look back. A few delicate snowflakes fell on Chieko's hair, then vanished.
一些晶莹的雪花落在了千重子的头发上，很快就消融了。

In fact when you look back you may well find that you have already dramatically changed.
事实上, 当你蓦然回首, 你会发现你已经戏剧性地改变了一切。

It is little wonder then, in this confusion, we look back to the old days with nostalgia.
因此, 我们在这种混乱时代眷恋以往是不足为奇的。

Look back to the founding of the European Economic Community, the EUs forerunner, in 1957.
回望过去, 欧盟的前身欧洲经济委员会于1957年成立。

LOOK BACK ON AND LOOK AHEAD TO THE STUDY OF XU XIAKE THE MODERN FORERUNNER GEOGRAPHER OF CHINA
对近代先驱地理学家徐霞客研究的回顾与展望

It's astonishing to look back on the world I left behind I remember it all, every single detail.
当我回头看身后的世界 真是令人吃惊 每个细节都历历在目。

If you look back through human history, you see that every evil regime has been overcome by good.
回顾人类历史，一切恶势力终究被正义战胜。

If you look back into history, you will certainly be fascinated with many quaint customs and cultures.
如果你回顾历史，你肯定会被许多奇异的风俗习惯所吸引。

Now, as you look back at the 18th century, at least in what we think of as the, quote, developed world.
看看过去的20世纪 至少在我们所谓的发达国家里

Look back upon suddenly, disturbances, or song or tears, number has left a little sighing with emotion.
蓦然回首，风风雨雨、或歌或泣，多少留下了些许感慨。

It is a time to look back and say goodbye to the past year and embrace the new year that's dawning on us.
现在，是我们回望往昔辞旧岁、静盼晨曦迎新年的时候。

Staring at our school badge, we look back on the past, we assess the present, and we contemplate the future.
凝视着校徽，我们回忆过去，思考现在，展望未来。

He did not look back again but bearcrawled through the ginseng patch and up the ridge, his breaths loud pants.
他没有再回头, 爬过人参地, 朝山脊爬去。他大口喘气。

But wink, look back how many times, in the smoke rain balcony but is already the west breeze to blow to fulfil.
而眨眼间, 几番回首, 烟雨楼台中却已是西风吹尽。

As they look back towards Earth, our planet gradually diminishes to become just one more speck amid a lacy network of galaxies in space.
当参观者回头遥望地球时，会发现我们居住的星球越来越小，最后在带有花边的太空星系网络中化为一个小斑点。

Life is like walking on a tightrope. One should focus one's mind and look forward. Walk ahead and do not look back with empty remorse and anger.
人生如高空走索。应专心一意往前看, 向前走, 不要回头空懊恼。