1. A survey conducted earlier this year shows how this convergence on similar types of work has blurred class boundaries. 今年早些时候进行的一项调查显示，类似工作类型的趋同是如何模糊了阶级界限的。
2. The difference in regular red-wine consumption has been narrowing, but no similar convergence in heart-disease rates has occurred. 在定期饮用红酒方面的差异正在缩小，但在心脏病发病率方面没有出现类似的趋同现象。
3. The series converges uniformly on compact subsets of the interior of the annulus of convergence. 该级数一致收敛于收敛环内的紧子集上。
4. But why is convergence necessary? 但是，为什么需要收敛呢？
5. What problem is convergence solving? 融合能解决什么问题？
