After twelve days at sea, they sighted land.
在海上航行十二天后他们看到了陆地。
The President arrived, escorted by twelve soldiers.
总统在十二名卫兵的护送下到达。
Twelve inmates have been killed during a riot at the prison.
十二名囚犯在该监狱里的一次暴乱中丧生。
The inventory will be disposed of over the next twelve weeks.
在未来的十二个星期中将进行清仓处理。
Twelve minus seven leaves five.
十二减去七剩五。