The election campaigns have been some of the costliest ever .
这次选举的竞选活动是有史以来最为昂贵的。
Costliest of all is the state monopoly over oil .
所有形式中价值最高的是国家对石油的垄断。
That figure would make this disaster the costliest since comparable records began in 1965 .
这个数字使得此次灾难成为自1965年有可比记录以来损失最大的灾难。
San francisco - a choir director who hopes prayer can bring down high gas prices is trying out his approach at some of the costliest pumps in the country .
