Beijing made a breakthrough in its air pollution treatment as the city reached the national air quality standard, local authorities said Tuesday.

当地政府周二表示，北京在空气污染治理方面取得了突破，该市达到了国家空气质量标准。

As supply chains get more and more complex, to make all kinds of foods available in organic quality, ensuring organic quality standards and regulations gets ever more difficult.

随着供应链变得越来越复杂，制作各种有机食品，确保有机质量标准和法规变得越来越困难。

But what we do specify is the quality standard we expect in order to ensure that real, permanent carbon removal took place at the agreed-upon price.

但我们确实指定的是我们期望的质量标准，以确保以商定的价格进行真正的、永久的碳去除。

At the Council on Energy, Environment and Water, my colleagues find that today, one in two Indians is breathing air that does not meet our air quality standards.

在能源、环境和水资源委员会， 我的同事们发现，如今，每两个印度人中就有一个呼吸着不符合我们空气质量标准的空气。