BP has already spent over $1 billion on the clean-up operation .

VOA: standard.2010.06.18

Alternatively,it might have been that Righty woke up, but Lefty doesn't wake up,doesn't survive the operation.

或者是，醒来的是小右，而小左没能熬过手术，再也没醒来。

耶鲁公开课 - 死亡课程节选

Shelly Kagan After the operation,Lefty wakes up thinking he's Shelly Kagan.

手术之后，小左醒来认为自己是。

耶鲁公开课 - 死亡课程节选

The World Health Organization says the simple operation can cure up to ninety percent of fistulas.

VOA: special.2010.08.09

"But the problem on the relief well is not simply drilling all the way down, it is also connecting it up, and that is a delicate operation that could take some time."

VOA: standard.2010.07.16

Earlier Friday, BP's incoming CEO Bob Dudley, said it is time to scale down the vast operation to clean up the Gulf of Mexico oil spill, but he stressed his company's commitment to fully restore the environment.

VOA: standard.2010.07.31