It’s in the underdeveloped eastern region of the country that the biggest problems exist.

最大的问题存在于这个国家贫穷落后的东。

Most areas in China were involved in this microthermal climate, hut disaster was not widespread in eastern part.

这次低温在全国范围内都存在，但在东有一些极端低温事件，并未造成大范围的灾害。