Waskow says the major challenges created for many poor countries by climate change, calls for long-term investment.

VOA: standard.2009.12.11

But if you are so inclined whether for this problem set or any other throughout the term, you can change your mind week to week.

但是如果你倾向哪套题,那么你可以按周改变想法。

哈佛公开课 - 计算机科学课程节选

It hurts in the long term and therefore, we need to change it rather than the constrained vision-- people who said, "We may not like it, but it is what it is.

长远来说是有害的，所以，我们需要改变它，而认为本性受约束的人-,他们会说，“我们也许不是那样，但本性难移。

哈佛公开课 - 幸福课课程节选

"Climate change challenges us all to find a new development paradigm that balances economic growth and long-term prosperity with social progress and ecological sustainability.

VOA: standard.2009.09.01

And,there is a serious problem when you use the term 'regime change' that you might encourage people to demonstrate,or to act in ways, where we can do absolutely nothing to protect or encourage them."

VOA: standard.2010.06.11

But in an economy that has lost jobs for 23 consecutive months, Hall noted that long-term unemployed continued to grow, rising by 293,000 to 5.9 million, with little change in the number of Americans employed part-time but seeking full-time work.

VOA: standard.2009.12.05