I don't know why we haven't done more.

我不知道为什么我们没有做得更多。

youdao

He was surprised at what he saw and scolded him angrily, "Lazy, I know why you're called Lazy. You're just like your name! What have you done for your house? It could fall apart at any second!"

他对所见到的一切感到惊讶，生气地骂他：“拉齐，我知道你为什么叫拉齐了。你就像你的名字一样！你为你的房子做过什么？它随时都可能散架！”

youdao

The pad was apparently built for the PS2 and would have come with an adapter for that (Why it was done this way, I don't know).

PS2的垫显然是建造和将会有一个适配器(这是为什么这样做，我不知道)。

youdao

"I never done it in my life - I don't,know kind of hard, that's why I am still here - unemployed."

VOA: standard.2010.05.15

"I don't know why I've done so well in the one-day games this season, I guess its been down to a bit of luck, " Schofield told BBC Sport.

BBC: Schofield back on right track

Yes, I do know why Amazon has done it, all the sock puppets rolling around those review sections.

FORBES: Amazon Bans Authors From Writing Reviews

"In terms of why they've done it, I don't know, " Bloomberg said at an event Wednesday night.

WSJ: Union: NY mayor threats postmarked Shreveport, La.