In the 1990s, nearly 90% of Kunming's wastewater was pumped untreated into Dianchi Lake.

20世纪90年代，昆明市近90%的废水都未经处理直接倒入滇池。

We monitor the whole 2000 square kilometer area which Dianchi Lake water covers and control the water pollution considering the whole picture.

我们监测总面积达2000平方公里的滇池水域，从全局控制水污染状况。

Authorities in Kunming have laid out a goal to improve the water rating on Dianchi Lake to grade four by 2020.

昆明市政府的目标是到2020年将滇池水质提高到4级。

After realizing the damage that was causing, local authorities have since commissioned a dozen wastewater treatment plants to help keep Dianchi clean.

在了解废水造成的危害之后，当地政府已经委托了十几家污水处理厂来帮助滇池保持清洁。

In addition, government is now implementing its river chief system, meaning all 35 rivers that flow into Dianchi Lake are under more intense inspections.

除此之外，政府现在实行河长制，也就是说，汇入滇池的所有35条河流都处于严格监管之下。

This unique relic is one of the few remaining traces of a long-lost ancient people called the Dian, a mysterious people who inhabited the vicinity of Lake Dianchi, in what is now Yunnan province some 2,000 years ago.

这个独特的遗物是一个被称为滇人的古老民族为数不多的遗迹之一，他们是一个神秘的民族，大约2000年前居住在滇池附近，也就是现在的云南省。