Author,educator and environmental activist Bill McKibben offers some advice in his new book on how to live on what he calls our "tough new planet."

VOA: standard.2010.04.21

One that seems to be in fashion these days, although you never know how long the fashion lasts, is: internal uprisings that somehow these monarchical areas, when life got tough, the people must have risen up against them.

有一个理论现在很流行,虽然不知道流行了多久,那就是认为,这些王国中起义的内部原因是,当民生困苦时,人们就必然奋起反抗

耶鲁公开课 - 古希腊历史简介课程节选

Knowing how to answer the tough questions from the media, Smith-Valade said,is key.

VOA: standard.2010.02.25

"It may cost one or two seats to be lost in tough districts, but I think once people really find out what this bill does and how good a job he's done and the Democrats have done, I think they may very well pick up some seats."

VOA: standard.2010.03.25