现在数学家面临的最大问题可能是黎曼假设。
The books we read in childhood are the ones that shape our souls.
俄罗斯法律的严厉性因不必强制执行而得到缓解。
The city is like a text, it speaks to those who can read it.
Hardware is the skeleton of innovation, software is its nervous system, but human need is its beating heart.