当天下雨时，空气中就会比平时含有更少的氧气——比我们悲观估计的下降幅度更大。
When it is raining, one lungful of air will often have a few per cent less oxygen than on an average day - a larger reduction than in our pessimistic scenario above.
其中，EV=推导出的估计，O=乐观估计，L=最可能的估计和P=悲观估计。
where EV=Derived Estimate, O=Optimistic, L=Most Likely, and P=Pessimistic.
要指出的是，在此情况下，对时间的估计悲观一些可能实际上非常重要。
One thing to point out is that pessimism can actually be very important in this situation.
这个估计可能太悲观，但是所有人都赞同这个数字会进一步上升。
That may be too pessimistic, but all agree that the number will rise further.
这些估计可能太过悲观。
这种估计无疑是悲观的，但研究人员同时找到了网络分析行业的增长点。
This assessment is undoubtedly bleak, but researchers also identified a few growth factors in the world of web analytics.
缓慢增长但额越来越高的储蓄额相对于乐观者和悲观者的估计都不是令人出乎意料的结果。
Slow growth and gradually higher saving is a less dramatic outcome than either the pessimists or optimists predict.
最悲观的估计认为超过1000家小银行将因为金融危机而倒闭，很多是在2010年倒闭。
The gloomiest estimates reckon that more than a thousand tiddlers will fail as a result of the crisis, many in 2010.
对当代小说和小说发展前景的过于悲观的估计，是失之片面的，也是缺乏现实依据的。
Excessively pessimistic estimate for the modern novel and its developing foreground was unilateral and also lack of realistic basis.
对当代小说和小说发展前景的过于悲观的估计，是失之片面的，也是缺乏现实依据的。
Excessively pessimistic estimate for the modern novel and its developing foreground was unilateral and also lack of realistic basis.
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