介绍:
Paul：The PM 2.5 resistant masks actually block most of the dangerous particles.
PM 2.5防尘面罩还是能够阻挡危险颗粒的。
Ali：Good to know. Do you use an air purifier at home?
太好了。你在家里会使用空气净化器吗？
Paul：Yeah, I do. The air quality index is shockingly high in many parts of China ，and it gets worse around this time of year.
是的。由于空气质量指数在中国的很多地方都高的吓人，每年这个时间则更差。
大家还在听
