虽然以前医生和其他健康专家不认为这些问题与麸质过敏症有关，但现在情况已经不同了。
Although these problems were not always recognized as being related to celiac disease by doctors and other health professionals, this situation is starting to change.
一个世纪后，情况完全不同了：这时，世界上已经有了电力工业，其四分之一的发电量是水力驱动的。
A century later the picture was completely different: by then, the world had an electric industry, and a quarter of its generating capacity was water powered.
我们已经了解到的情况是，随着我们纳入的时间跨度变长，这一记录提供了越来越多的证据表明气候在不同的统治期存在缓慢的波动。
What we do know is that as we include longer time intervals, the record shows increasing evidence of slow swings in climate between different regimes.
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