51.   The project will cost tens of billions of dollars to complete.

52.   The plan, which would cost tens of millions of dollars, still faces regulatory and legislative hurdles that could take years to clear before construction could begin.

53.   The projects typically cost tens of millions of dollars, and the federal government pays much of the cost.

54.   Their stock prices tumbled, costing investors tens of billions of dollars.

55.   They also said the name change would cost tens of thousands of dollars in repainted road signs, firetrucks and police cars.

56.   They approved a much-touted deal to bring the Oakland Raiders football team back from Los Angeles that ended up costing taxpayers tens of millions of dollars.

57.   Those efforts could cost tens of millions of dollars.

58.   Two years of intermittent war along the border has cost tens of thousands of lives.

59.   While defending itself against armed attacks, it must try all the more to resolve peacefully a conflict that has cost tens of thousands of lives.

60.   Zhu, who replaced Li as prime minister last year, has never shown enthusiasm for the dam, which will cost tens of billions of dollars.