pm2.5

1
It's best to stay indoors especially when PM2.5 has reached dangerous levels.
最好待在室内，尤其是在 PM2.5 达到危险水平的时候。
2
Particulates, especially PM2.5's, have been shown to cause disease.
颗粒，特别是PM 2.5已经显示致病能力。
3
Even if the air looks clear, it's nearly certain you've inhaled millions of PM2.5 particles.
就算空气看起来纯净透明，可以肯定的是，你已经吸入了数以百万计的PM 2.5颗粒。

点击反馈