英语语法分析

Their specialty is converting sunlight into nonwoody tissues loaded with starch; that is, into vast fields of high-energy food—fields that grow 20 feet high.

这些禾草的专长是将阳光转化为富含淀粉的草本组织；这种富含高能量的草料能长到6米高，且覆盖了很大的一片区域。