stand off (someone or something)
to keep someone or something from winning
We were able to stand off the other team and win the tournament.
Benefits of Yams
It believed that with more research and studies, Yams and sweet potatoes alike will someday give us the answer and the medicine to cure this very debilitating disease. Yams are grown throughout Africa, but Nigeria is the worldands most prolific producer, exporting to 70% of the world market. Close to 200 species of yams are eaten worldwide, but other than those found wrapped individually in supermarkets, they arenandt easily found on American produce shelves. Popular varieties include Hawaiian yam, Korean yam, and sweet yam.