The impurities are washed out with methanol,I think,before this gas is sent on to reactors where it’s changed into oil.It be many years before this problem be solved.在这个问题被解决之前过去了许多年It won’t be long till this new t

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The impurities are washed out with methanol,I think,before this gas is sent on to reactors where it’s changed into oil.It be many years before this problem be solved.在这个问题被解决之前过去了许多年It won’t be long till this new t
The impurities are washed out with methanol,I think,before this gas is sent on to reactors where it’s changed into oil.
It be many years before this problem be solved.在这个问题被解决之前过去了许多年
It won’t be long till this new type of oil be avaible.
在这种油的新形式可以利用之前将不会过太久
1.I think是插入语?
2.till,until,before等引导的时间状语从句到底有什么区别?
3.以上我翻译有什么错误没?
4.reactors where it’s changed into oil.→it’s changed into oil in the reactors?

The impurities are washed out with methanol,I think,before this gas is sent on to reactors where it’s changed into oil.It be many years before this problem be solved.在这个问题被解决之前过去了许多年It won’t be long till this new t
1.I think 是插入语,也可以放前面--不过会觉得句子太臃肿
2.till比until的用法少一些也随意一些,until主要是直到(前面有连续的含义)而Before没有连续的含义就是在..之前.till,until一般和not连用.
3.对的呀~
4.Gas貌似是在反应堆里压缩变成油的.(IELTS里面有个阅读说的)

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