1·The Chiefs nearly doubled the Ravens in total yardage and time of possession.
酋长队向前推进的距离和控球时间几乎是乌鸦队的两倍。
—— 《柯林斯英汉双解大词典》
2·The researchers discovered that the number of risks teens took more than doubled when their friends were watching, compared with when they played alone.
研究人员发现，与单独玩耍时相比，青少年在朋友旁观时所承担的风险是前者的两倍以上。
3·Inflation is running at over 30 percent, the homicide rate has more than doubled since he took office, and food shortages abound.
通胀仍运行在30%的高位，谋杀犯罪率自他上任以来上升超过两倍，而食品短缺现象随处可见。
4·In the WHO African Region the rate of decline in child deaths doubled from 2000-2008, compared to the previous decade.
在世卫组织非洲区域，2000年到2008年，儿童死亡减少的速度是之前十年的两倍。
5·More teens are smoking in Beijing, where the number of primary and middle school students picking up the habit has more than doubled from previous years, a survey has found.
据一项调查显示：在北京，吸烟的青少年人数日益增多，染上烟瘾的小学生和初中生人数是前几年的两倍还多。