This animal USES its toothy "saw" to sense buried crustaceans or bottom-dwelling fish, and to stun and kill them.

这种生物用它的齿状“锯子”来感知，打昏，杀死隐藏的甲壳类动物和住在海底的鱼类。

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From that point, it will take another few days to permanently seal the well with mud and cement from below in what's called a "bottom kill" procedure.

CNN: STORY HIGHLIGHTS

Allen said that would push the interception date -- which had been expected Thursday or Friday -- to sometime between Sunday and next Tuesday, weather permitting, at which point crews could begin the "bottom kill" procedure to permanently cement the well.

CNN: STORY HIGHLIGHTS

And following the intersection of the well bore with those relief wells, they will put heavy mud down there to suppress the pressure of the oil coming up from the reservoir, put a cement plug in and effectively do what I would call a bottom kill, as opposed to the top kill, which was not successful a couple of weeks ago.

WHITEHOUSE: Daily Press Briefing