This kind of textile machines has long since been out of use.
这种纺织机械早已不用了。

,往昔This kind of textile machines has long since been out of use.
这种纺织机械早已不用了。
I've long since forgotten what our quarrel was about.
我早就忘掉我们为什么吵架了。
It was not long since that I returned.
我是在不久
回来
。
How long since is it?
那是在多久以
?
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