You will feel more buoyant and optimistic about the future than you have for a long time.

对于未来，你会比很久以来所感受到的更加快活、乐观。

《柯林斯英汉双解大词典》

Joel Stein wrote an extensive piece on Millennials and he remains rather optimistic about our potential.

乔尔·斯坦写了一篇关于千禧一代的长文章，他对我们的潜力相当乐观。

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Senegar-Mitchell says she has her own reasons to feel optimistic about the future of bioscience education in American schools.

VOA: standard.2009.11.25

So quickly I realized that we were too optimistic about the future of Internet in China.

很快我就意识到,对于中国互联网的未来看的太过乐观。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

I'm optimistic about the audio equipment and about our slide material and things such as that.

我对我们的音响设备,和我们的投影材料等都很有信心

耶鲁公开课 - 聆听音乐课程节选

Last week China posted weak manufacturing reports, and analysts aren't optimistic about upcoming data.

WSJ: China Rate Cut Spooks Asia Markets

Similarly, if forecasters are optimistic about the economy, does the stock market go up?

FORBES: Bear Markets Lead to Bearish Forecasts

Mr Capriles has reason to be optimistic about his chances in the October general election.

ECONOMIST: Venezuela��s presidential campaign