We did not know how much danger we were truly in until we learned the truth behind the unfortunate death of music legend Michael Jackson.

直到我们了解到音乐传奇人物迈克尔·杰克逊不幸去世背后的真相，我们才知道我们的处境有多么危险。

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We can learn what we did not know.

我们能学会我们原来不懂的东西。

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But we did not know.

可是我们都不知道。

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We did not know how quickly it was going to move. flu, you cannot catch up.

VOA: standard.2009.05.03

But we do know that the violence between the Earps and the Cowboys did not end at the OK Corral.

VOA: special.2010.02.15

"We had a new strain of flu. We did not really know that its lethality was going to be.

VOA: standard.2009.05.03

"We did not know they were so well-placed" across southern Iraq, the official said.

CNN: Pentagon official: Iraqi militias unexpected challenge

"It's unfortunate, but we did not know about the people resident in that compound, " the ISI official said.

WSJ: New Test for U.S.-Pakistan Relations

We did get into some spots where we did not know how to get out of the music...

NPR: 'Cowboy,' a Study in Radio Tale-Telling