These microbes enable the soil to have more nitrogen, which plants need to live and they remain quite active during the winter.

这些微生物可以让土壤中植物生长所需的氮含量增加，在冬天让植物仍保持活跃。

youdao

Aeroponics, a technique in which plants are suspended and the roots misted with a nutrient solution, is another method for growing plants without soil.

空气培植法是一种将植物悬挂起来、并将根部浸泡在营养液中的技术，是另一种不需要土壤就能种植植物的方法。

youdao

They might document which plants are blossoming or what animals live in there. Through sharing these, other kids can see the differences across the country.

他们也许会记载哪些植物开花了，或者他们地区生活了哪些动物。 通过分享这些记载，其他的孩子就会看到全国不同的地方。

youdao

Rockman imagines a terrible future in which plants and animals must be sent into space to protect them from Earth's pollution.

VOA: special.2010.12.15

It contains an million tons of magnesium, 1,000,000 tons, which is more than has ever been produced in one year by all the magnesium plants in the world.

它含有一百万吨镁，一百万吨，那比我们每年世界各地,生产镁的工厂的总产量还要多。

麻省理工公开课 - 固态化学导论课程节选

"This exhibition represents a more mature view,if you like, one which can take account of catastrophes like earthquakes, problems at nuclear plants and tsunamis."

VOA: special.2011.04.08

Do your research about the soil conditions in your area, and which plants grow best in it.

FORBES: How To Reduce Your Landscaping Costs

Without photosynthesis, the process by which plants use sunlight to convert carbon dioxide into energy, the trees effectively starve.

BBC: NEWS | Science/Nature | Climate threat has plants quivering

An allergist tests to see which plants you are allergic to, and then gives injections of tiny doses of those offending substances so that you become desensitized.

CNN: Global warming brings on more pollen