谁知道他们还可能找到什么。
谁知道将来会有什么变化？
有谁知道今天是什么日子吗？
谁知道答案？请举手。
谁知道如何种树？
谁知道？
现在，谁知道？也许是海豚还是某种——类人猿中的一些。
Now, who knows? Maybe dolphins or certain-- some of the great apes.
谁知道呢，也许我也会滚下楼梯，娶到一位公主做老婆呢！
Who knows, perhaps I may fall downstairs, too, and get a princess as wife!
该遗址位于现代土耳其境内，谁知道最初的居民是怎么称呼它的呢。
The site's in modern-day Turkey, and who knows what the original inhabitants called it.
就因为我不听那讨厌的蟋蟀的话，谁知道会有多少不幸在等着我呢！
Just because I would not listen to that bothersome Cricket, who knows how many misfortunes may be awaiting me!
也许我们獾子也用我们微不足道的方式帮了一点小忙——谁知道呢？
Perhaps we badgers too, in our small way, helped a little—who knows?
谁知道他们当中谁有更大权利？
他真地得对自言自语小心点。谁知道他可能会说什么？
He really must be careful about thinking aloud. Who knew what he might say?
谁知道呢？也许你可以成为另一个珊文。
你有没有听说过“谁知盘中餐，粒粒皆辛苦？”它告诫我们不要浪费食物。
Have you ever heard of "Who knows that each bowl of rice is the fruit of hard toil?" It tells us not to waste food.
谁知道呢，但有一件事我很确定：她还没有写出畅销书。
Who knows, but there's one thing I am sure: she hasn't written a best-selling book yet.
谁知道这件事了？
他自己不是诗人，也不在乎谁知道；他生性坦率。
He was no poet himself and didn't care who knew it; and he had a candid nature.
谁知道谁是谁？
如果他能让人们回答问题，谁知道会发生什么事呢！
If he could make people answer questions, who knew what might happen!
但在开始之前，我想让你们花点时间思考一下：有谁知道，当今美国最流行的房子样式是什么吗？
But before we get started, I want you to take a moment to think: does anyone know what the single most popular style for a house in the United States is today?
我是开玩笑，谁知他竟当真了。
I was only joking; who would have thought he would take it seriously.
这么陡的峭壁，谁知他竟爬上去了。
Who would have expected that he could climb up that steep cliff?
有谁知道，我们走向何处。
谁知道他们长什么样子呢？
有谁知道，我们身在何处！
谁知道——什么都有可能。
在那之后，谁知道呢？
为什么？谁知道呢。
为什么？谁知道呢。
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