复数：root beers
n.carbonated drink containing extracts of roots and herbs
Root beer
Root Beer
Root Beer
ROOT BEER POSTMIX DRINK DISPENSER
Homemade Root Beer, Soda & Pop
Homemade Root Beer Soda and Pop
The "Green"Root Beer Laboratory.
Homemade Root Beer, Soda & Pop [Paperback]
Root beer float strainer and method of reducing foam
Determination of methyl salicylate in root beer
Fun Microbiology: Making Root Beer & Other Naturally Carbonated Beverages.
Glucose promotes controlled processing: Matching, maximizing, and root beer
Public Choice, Public Interest, and the Soft Drink Interbrand Competition Act: Time to Derail the "Root Beer Express"?
