Since the roads are very bad, the trip took us a long time.
由于道路很差，这次旅程花费了我们很长时间。
Since then, there is a very long time, and we did not have much contact with.
从那以后，有很长的时间，我们并没有多少接触。
Biofuel had been used since a very long time for the production of electricity.
在生产电之前，生物燃料已经被使用很长一段时间。
It has been a very long time since I had such pleasure.
我很久没有这么开心过了。
It has been a very long time since I had such pleasure.
我很久没有这么开心过了。
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