And I don't know if it's genuine.

而且我也不知道它是否是真品。

youdao

And I don't know if it's relevant.

我也不知道这存不存在相关性。

youdao

I didn't get to see dad much, and I don't know if Granny got to see him very often either.

我和爸爸见面不多，也不知道奶奶是不是经常见他。

youdao

"One soldier had been fighting in the jungles for years. And I don't know if it had affected him or not, but when the clerk handed him a tweed suit to try on he spent three hours searching through the fuzz for snipers."

VOA: special.2009.03.09

and I don't know if you guys know what fraternities and sororities are.

我不清楚你们知不知道兄弟会和姐妹群是什么。

不能错过的派对 - SpeakingMax英语口语达人

And the other thing to point out, which I don't know if this is true or not, but does anyone know -- well that's part's true, does anyone know what the atomic mass of lithium is?

另外需要指出的一点是，关于这点我不知道是不是真的，有人知道--这部分是真的，有人知道锂的原子量吗？

麻省理工公开课 - 化学原理课程节选

And I don't know if Dylan would have existed without coming out of that time.

NPR: Film Provides Kaleidoscopic Portrait of Bob Dylan

So anyone who's been there - and I don't know if he's been there or not.

NPR: Beijing Air Quality to Challenge Olympic Athletes

And I don't know if some male member of the family can contract on my life here.

CENTERFORSECURITYPOLICY: Rifqa Bary and the Noor Mosque