I usually limit myself in my newspaper commentaries to my area of expertise, economics. But as an American, I am so horrified by what has happened in my country - and what my country has done to others over the past two years - that I feel I must speak out.
通常情况下，我的报章评论都限于自己专长的经济领域。但作为一名美国人，国内发生的一切让我感到震惊¾过去两年来美国在国外的所作所为，让我感到必须站出来说话。