Still, few software projects perform as planned; initial as well as later estimates tend to be way off, demanding frequent re-planning, which unfortunately also tends to be overly optimistic.
尽管如此，很少有软件项目按照计划执行；最初的和后来的评估都会走样，我们需要频繁的中心制定计划，不幸的是这些计划往往也都过于乐观。
Therefore we still have a long way to go to achieve full economic recovery and we can not be over optimistic.
因此要完全实现经济复苏，我们仍有很长的路要走，不能盲目乐观。
To sum up, for the New Year's first trading day of the sharp rebound in markets, investors should still maintain the necessary caution, not be blindly optimistic.
综上所述，对于新年首个交易日市场出现的大幅反弹，投资者还是应当保持必要的谨慎，不宜盲目乐观。
The result shows that it is still not optimistic and there are still many problems to be solved.
结果表明：其生产与经营现状仍不容乐观，还存在许多亟待解决的问题。
There are still many problems to be resolved, but we remain optimistic about an eventual agreement.
尽管还有很多问题要解决，但我们对达成最终协议仍抱乐观态度。
As we approach the Lunar New Year, I sense more of an upbeat and optimistic spirit among people I talk with, although a host of questions about policy directions are still waiting to be answered.
春节将近，我感觉身边的人表现出更多的积极和乐观，但还有很多关于政策导向的问题尚待解答。
Still, the discovery has scientists optimistic about what else Kepler might be able to reveal.
即使如此，该发现还是让科学家为之一振，他们期待开普勒能有更多新发现。
We're still taking it day by day, but the organization and I are optimistic that I'll be back out there soon.
我们正一天天的努力，球队和我都对我的很快回归很乐观。
We're still taking it day by day, but the organization and I are optimistic that I'll be back out there soon.
我们正一天天的努力，球队和我都对我的很快回归很乐观。
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