它们起到天然肥料的作用，帮助为未来作物的根系提供养分。
They serve as a natural fertilizer and help support the roots of future crops.
这些天然肥料是从哪里来的？
你还能闻到天然肥料(人体排泄物)的味道……很难闻。
You might also smell the (human waste) fertilizer... not a pleasant smell at all.
1吨肥料大约需要33,000立方英尺的天然气。
One ton of fertilizer requires about 33,000 cubic feet of natural gas.
1吨肥料大约需要33,000立方英尺的天然气。
One ton of fertilizer requires about 33,000 cubic feet of natural gas.
应用推荐