The results show that ornamental plants have certain absorption and purgation ability and have significant differences according to different pollutants and plants.

结果表明：园林植物对环境污染物中的铅、镉具有一定的吸收净化能力，并依污染物和植物的不同具有明显差异。

youdao

The results show that the planting tree has certain absorption and purgation ability to atmospheric pollutants, and which widely varies with pollutant gas and planting tree.

结果表明：绿化树种对大气污染物具有一定的吸收净化能力，并依污染气体和树种的不同具有明显差异。

youdao

What exactly that purgation will entail and why Milton's voice needs to be purged at all I think these questions are really the subject of the entire rest of the poem.

这种净化是很有必要的，弥尔顿的语言为什么需要被完全净化，我认为这个问题才是所有剩余诗歌，真正的主题。

youdao

What exactly that purgation will entail and why Milton's voice needs to be purged at all I think these questions are really the subject of the entire rest of the poem.

这种净化是很有必要的,弥尔顿的语言为什么需要被完全净化,我认为这个问题才是所有剩余诗歌,真正的主题。

耶鲁公开课 - 弥尔顿课程节选