'You sometimes get an explosion,' but this can get important issues out in the open, Ms. Stack says.

她说，有时候对方会爆发，但这样做可以把重要问题摆到桌面上来讨论。

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The primary culprit behind the explosion appears to be the blowout preventer, a two-story-tall stack of valves on the seafloor that was built by Cameron in 2001 and designed to guillotine shut an out-of-control well.

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