毫无疑问，它已经很长时间了，并且一直会是重复性的主题。
There is no doubt that it has long been and will always be a reoccurring theme.
奶酪间里有一架楼梯，只有从那儿才能上楼去，阁楼已经关闭了很长时间，他来了以后才把它打开作他的住处。
It could only be reached by a ladder from the cheese-loft, and had been closed up for a long time till he arrived and selected it as his retreat.
角色模型并不是一个新概念，它已经存在很长时间了。
The actor model is by no means new; it's been around for quite some time.
该工具已经问世很长时间（它大约出现在 1994 年），并具有您认为任何此类办公套件应具有的优点和特性。
It's been around a long time (it emerged around 1994) and has acquired the polish and features you would expect of any such office suite.
这个方法的缺点是当队列真正恢复后，需要经过很长时间您才能确定它已经恢复。
The downside to this method is that if the queue really gets backed up, it will take a long time to determine that you're backed up.
MVC模式(自1979年以来)已经出现很长时间了，它皆在分离显示用户界面所需的大量任务，并处理用户交互。
The MVC pattern has been around for a long time (since 1979) and it is intended to separate the burden of tasks necessary to display a user interface, and handle user interaction.
很长时间以来，你们已经觉察到即将来临的时期，但是它仍然会使你吃惊，如果不是如此地震惊你的话，它会在十分短的时间里实现。
You have been aware of this coming period for quite some time, but it will still surprise you if not astonish you that so much can be achieved in such a short time.
考试中已经存在了很长时间也有它的优点。
The exam which has existed for long time also has its advantages.
如果新工作中要用的技术你已经很长时间不用了，利用这个时候把它捡起来。
If the job requires skills you haven't used in a while, use the time to brush-up.
他花了很长时间介绍这本书，其实没有必要，因为学生们对它已经很熟悉了。
He unnecessarily spent a lot of time introducing this book, which the students are familiar with.
角色模型并不是一个新概念，它已经存在很长时间了。
Role model is not a new idea, it has existed for a long time.
它已经负了伤，很长时间找不到伴侣，所以经不起一点点的惊吓。
It was already wounded, and for a long time could not find its companion. Therefore it couldn't stand the least fright.
它看起来非常新，但他已经在这有很长时间了…”，我肯定看门人更象是保安。
It still looks new but it's been there awhile…" I'm sure the doorman was like, "call security.
如果你试图在很长时间之后重新回忆某些东西(对于无用信息，甚至可能是1小时)，你的大脑将很难找到它，更有可能的是你已经忘记了。
If you are trying to recall something after a long time (it can be even 1 hour for useless information), your brain will have an hard time finding it, as it's more likely you have forget it.
然而在日出及日落时，光线以一个较小的角度照射进大气层，当我们肉眼看到时已经过很长时间（它已走过了很远的路程）。
But at sunrise and sunset, sunlight enters our atmosphere at a shallow angle and travels a long distance before reaching our eyes.
然而在日出及日落时，光线以一个较小的角度照射进大气层，当我们肉眼看到时已经过很长时间（它已走过了很远的路程）。
But at sunrise and sunset, sunlight enters our atmosphere at a shallow angle and travels a long distance before reaching our eyes.
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