今天我们要学的词是balloon。 Balloon, 气球，做为动词，有迅速膨胀的意思。最新公布的数字显示， "Wikileaks spending ballooned as it tried to pay salaries," 维基揭密开始支付工资，造成开支膨胀。 "The New Jersey pension system's long-term deficit ballooned to $53.9 billion in the last fiscal year," 新泽西州退休基金的长期赤字上个财政年度猛增到539亿美元。美国第一大团购网站Groupon发展迅速。 "In just two years, Groupon has ballooned to 3,100 employees, 35 million users and more than $1 billion in annual revenue," 短短两年里，Groupon已经发展到3100名员工，3500万用户，年收入也超过了10亿美元。好的，今天我们学习的词是balloon...