But when we look back, it's too late.
但是，当我们回头看，这是为时已晚。
On today's program, we look back at some of them.
在今天的节目中，我们将会回顾其中一些经济意外。
When we look back now, will our jokes still be funny?
当我们回顾今天是否我们的玩笑仍然有趣？
When we look back, we can see the poor and weak in the past years.
当我们回首往事，可以看到过去的贫穷和软弱。
If we look back, we realize the tremendous changes liberation has made.
如果回顾过去，我们就体会到解放带来的巨大变化。
We look back at our past to learn, to grasp our present and to shape our future.
我们回顾历史，是为了更好地把握今天和未来。
Every moment to waste, the feeling when we look back into the short, time is too precious!
每浪费一刻，回首时感觉我们迈进的太短，时间太宝贵！
I do believe that there will be a time when we look back and say, 'Oh yeah, that was the plastic age.
我相信当我们回过头来看这段历史时，我们肯定会说，哦，是呀，那就是曾经的塑料时代。
When we look back through history, we can see that a lot of different stories all turn out to be stories about information.
回顾历史，我们能发现很多不同的故事最后被证明都是关于信息的故事。
Look back at the line where we created the JMS session.
回头看一下我们创建JMS会话的代码行。
Next we switch back to the physical level and take a closer look at accessors.
下面我们回到物理层来仔细看看访问器。
Far away along the path we saw him turn and look back at the hound.
我们从这条小路的远处看到，亨利爵士转身向后看到了那只猎犬。
Elena: Look. No one knows where I am. Can we please just go back?
听着没人知道我在哪儿我们回去好吗?。
The most beautiful thing is unable to restore, unfortunately, we are in a very short period of time to appreciate, but for a long time to look back.
越是美好的东西越无法还原，遗憾的是，我们总是用很短的时间去欣赏，却用很长的时间去回望。
"We are planning to go back next year to look for more," Dr.
我们正计划明年重返那里寻找更多象龟。
The very least we should do is look back.
那我们至少应当报以回望。
We are told that in life, it is best to look forward on our trail ahead, rather than look back.
我们被告知，在生活中，最好是一路往前看，而不是往回看。
我们向前看，不回头。
We asked him how the device can look back in time.
我们向他请教这台设备如何能够看到时光倒流。
We asked him how the device can look back in time.
我们向他请教这台设备如何能够令时光倒流。
"Never look back," we said. How was I to know I'd miss you so?
别再回头，我们说。我怎么会知道，我会如此想念你。
We can look back, but we will still move forward.
我们会追忆，但我们仍然坚持向前走。
Here we look at ways that Chinese lives are different from ours back home.
现在我们就来看看与我们生活方式不同的中国人是如何生活的。
We already should have known in the past, but now we should not look back.
我们以前就应该明白这点，但是现在我们不能往回看了。
Moving forward on the way. maybe we should take a step back, look around.
我们需要发掘一路上的可爱之处。
When we see something at a distance, we also need to look back in time.
当我们远望的时候，也应该及时地回头看看。
For answers, we must look back more than 2,000 years.
要回答这些问题，我们必须回到两千年前。
For answers, we must look back more than 2,000 years.
要回答这些问题，我们必须回到两千年前。
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