Chinese capital choking on thick smog
中国首都北京持续重度雾霾
For more on the smog, we're joined live by our reporter Grace Brown in Beijing.
就北京雾霾详情,我们马上连线北京记者格蕾丝·布朗。
Grace, Chinese Premier Li Keqiang vowed tougher action on air pollution on Sunday.
格蕾丝,李克强总理称将在周日采取更严厉的措施整治空气污染。
What more can you tell us?
你能告诉我们详情吗?
And Grace, what else has China done to try and curb pollution?
还有,中国还针对污染问题进行了哪些尝试?