我猜在卡萨布兰卡一定有很多破碎的心，你知道我从未置身其中，所以不得而知。《卡萨布兰卡》。

I guess there are many broken hearts in Casablanca. You know I've never really been there. so I don't know.

youdao

Windows 8尚处于开发阶段，所以该操作系统在平板电脑上如何工作还不得而知。

Windows 8 is still in development, so it's unclear how well the system will run on tablets.

youdao

有些商品之所以摆在那儿显然有它的理由，像压瘪的罐头或边角压碎的盒子之类；另外一些就不得而知了。

Some of the items are there for obvious reasons, like dented cans or corner-crushed boxes; others are a mystery.

youdao