rivet

n.铆钉 vt.铆接，铆牢；集中(目光或注意力)

rising fives, risk, riskily, riskiness, risky, risotto, risque, rissole, rite, ritual, ritualize, ritzy, rival, rivalry, rive, riven, river, river bed, river-bed, riverside, riveter, riveting, Riviera, rivulet, riyal, rly, RM, RN, RNA, RNIB, RNLI, roach, road, road safety, road sense, road show, road tax, road test, road to, road-block,