他们现在正在为过去的错误付出代价。
手工工具是过去的遗物，现在已被机器取代。
Hand tools are relics of the past that have now been superseded by the machine.
如果想有进步，现在就该宽恕过去的罪过。
It is time to forgive past wrongs if progress is to be made.
奔跑阶段已经过去；现在是飞跃的时候了。
我现在看的书比过去少得多。
这届政府的蜜月期现在已经过去了。
她的信把过去与现在结合在一起。
学生们过去发挥了重要的作用，但现在，他们不再重要了。
Students have played an important role in the past, but for the moment, they're on the margins.
过去看似不可能的事，现在显然有可能了。
What had seemed impossible now seemed a distinct possibility.
你必须忘掉过去，开始现在的生活。
You've got to forget the past and start living in the present.
Ihave eaten是动词eat的现在完成时；Ihad eaten是过去完成时；Iwill have eaten是将来完成时。
'I have eaten' is the present perfect tense of the verb 'to eat', 'I had eaten' is the past perfect and 'I will have eaten' is the future perfect.
过去她为我工作，而现在我们的地位对调了。
She used to work for me, but our situations are now reversed.
因为对现在的大失所望，他把过去浪漫化了。
He romanticized the past as he became disillusioned with his present.
现在年轻人的机会比过去多得多。
There are far more opportunities for young people than there used to be.
她把过去的情况与现在的危机进行了对比。
在许多东方国家，按摩过去和现在都是日常生活的一部分。
In many Eastern countries massage was and is a part of everyday life.
现在的行为标准和过去不一样了。
我们现在使用拖拉机的地方，很明显过去使用的是马。
Where we use tractors, obviously they used cart horses in those days.
他的妻子过去相当文静，而现在也不是一个爱招摇的人。
His wife was fairly quiet but she is not an ostentatious person anyway.
她现在管辖着过去是她上司的那些人。
She now has authority over the people who used to be her bosses.
有些人相信过去发生或现在发生的一切将来都会重演。
Some people believe whatever has happened before or is happening now will repeat itself in the future.
通过阅读，他们发现了生命更深层次的意义，书让他们对过去和现在的生命有所了解。
Through their reading they find a deeper significance to life as books acquaint them with life in the world as it was and it is now.
我想告诉你们有关人口数量的过去、现在和未来。那么让我们从一些问题入手。
I want to tell you about the past, present and future of the human population. So let's start with a few problems.
它使用定量数据和数学模型作为分析工具，研究这些人口在过去、现在和未来的情况。
It studies these populations in the past, present and future using quantitative data and mathematical models as tools of analysis.
它使用定量数据和数学模型作为分析工具，研究这些物体在过去、现在和未来的数量。
It studies these populations, in the past, present and future, using quantitative data and mathematical models as tools of analysis.
我想告诉你们关于人类的过去、现在和未来的事情，所以让我们从一些问题入手。
I want to tell you about the past, present and future of the human population, so let's start with a few problems.
当高中生进入大学时，他们过去和现在的阅读习惯将会影响他们的学业表现。
When high school students go on to college, their past and current reading habits will influence their academic performance.
现在我害怕回顾过去，因为过去的生活就像一个可怕的梦。
Now I am afraid of looking back since the past life seemed like a horrible dream.
当你买百吉饼的时候，过去你会买到这么大的，而现在你买到的真的要大得多。
When you get a bagel, it used to be you'd get something this size, and now you get something that's really, really much bigger.
当你买百吉饼的时候，过去你会买到这么大的，而现在你买到的真的要大得多。
When you get a bagel, it used to be you'd get something this size, and now you get something that's really, really much bigger.
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