This beneficial environment also have better oxygen cleaner air.

这种有益的环境也有好的氧，洁的。

Thirty-year-old Indian Vidyat Mohan is hoping to bring back cleaner air through sustainable energy to Delhi and its neighborhood.

今年30岁的印度人Vidyat Mohan 希望通过可再生能源，让德里及其附近地区的重新变得洁。

However, it will keep the air cleaner in the near future.

但是，它将在不久的将来保持洁。

But new technology may help reduce these patterns, rendering our roads safer, our daily commutes more efficient, and our air cleaner.

但是新型技术 可以帮助减缓这些状况，让我们的道路加安全、日常通勤加有效、 加洁。

That education of knowing the benefit of trees and cooling down an environment, how it makes the air cleaner.

了解树木的好却环境以及它如何使洁的教育。

The piano gets cleaned between lessons. The truck is equipped with an air cleaner and lighting, which means the engine has to be running.

每次课程结束后都会对钢琴进行消毒。卡车上配备了净化器照明设备，这意味着发动机必须于运行状态。

Do you think that by staying in your office you are breathing cleaner, safer air than when you go outside for lunch or are on the way back home from work?

你是否以为待在办公室内，你所呼吸的就比你外出吃午餐或下班回家路上来得干净、安全呢？