N-UNCOUNT Ballooning is the sport or activity of flying a hot-air balloon. 热气球运动
James hiked, fished, learnt to sail and experimented with hot air ballooning.
詹姆斯徒步旅行,钓鱼,学习驾驶帆船,还尝试了热气球。
The federal deficit and debt burden are ballooning.
美国联邦赤字和债务负担在急剧膨胀。
The country overspent and failed to report the true size of its ballooning deficit to the European Union.
VOA: standard.2010.02.26
Unemployment in the United States edged up to 9.8 percent in September, and President Obama says the ballooning cost of health care is part of the reason for it.
VOA: standard.2009.10.03
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