After decades of trying to reform public education from within, many of these teachers are now proving that all students can succeed. (wacharterschools.org)
With decades of tried and tested adaptations, you'd think by now someone would have got the idea that maybe they don't work. (seanmcconvillereviews.com)
Likewise, despite decades of tries, there's still no cure for Parkinson's disease or even a drug that's been shown to slow its neurodegenerative progression. (fortuneconferences.com)