一切都是未知数：这完全是概率问题。
我们刚刚跨入新年，一切都是未知。
We have all just entered into a new year, and an uncertain one at that.
一切都是未知的！
我最喜爱的艺术创作正在过程中，一切都是未知的。
My favourite artistic creation is beginning process, the Unknown.
就像幻想永远在一切都是未知的时候给我们莫大的满足感。
Like fantasy forever in everything is unknown to us great satisfaction.
上个学期开学时，我离家的心情十分复杂，因为一切都是未知数；
Last semester when I left home I didn't really know what I felt;
在这个过程中，谁会成为你的忧伤，谁又会成为你的欢乐，一切都是未知。
In the process, who will become your sadness, and who would like to be your joy, everything is unknown.
这是最谦逊的企业：一个雪茄巻制大师、生产25美分一支的雪茄，未来一切都是未知数。
It was the most modest of ventures: one cigar roller, cigars that cost 25 cents apiece, and a future that was very far from certain.
今天是我来到这个世界的第二天，我现在几乎什么都不懂，几乎一切都是未知、新鲜和充满可能性的。
Today is my second day to this world! I almost don't know anything yet, everything to me is unknown, fresh and full of possibilities.
今天是我来到这个世界的第二天，我现在几乎什么都不懂，几乎一切都是未知、新鲜和充满可能性的。
Today is my second day to this world! I almost don't know anything yet, everything to me is unknown, fresh and full of possibilities.
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