RNA

abbr 缩写 = (chemistry 化) ribonucleic acid 核糖核酸.

ritual, ritualize, ritzy, rival, rivalry, rive, riven, river, river bed, river-bed, riverside, rivet, riveter, riveting, Riviera, rivulet, riyal, rly, RM, RN, RNIB, RNLI, roach, road, road safety, road sense, road show, road tax, road test, road to, road-block, road-hog, road-house, road-mender, road-metal (also metal), road-works, roadblock, roadie, roadrunner, roadside,