在广义相对论中，奇点被认为是时空曲率无限大的点。

In general relativity, ___singularities are points where spacetime curvature becomes infinite.

这座建筑的独特之处在于它的螺旋形屋顶。

The ___singularity of this building lies in its spiral-shaped roof.

专家预测科技奇点可能在2050年前到来。

Experts predict that the technological ___singularity may arrive before 2050.