royal blue

(Brit) deep bright blue colour 宝蓝; 藏蓝.

rousing, roustabout, rout, route, route march, routine, routinely, roux, rove, rover, roving commission, row, rowan, rowdily, rowdiness, rowdyism, rowdy, rower, rowing-boat (also esp US `row-boat), rowlock, royal, Royal Commission, Royal Highness, royal jelly, Royal Ordinance, royalist, royally, royalty, rpm, RRP, RSA, RSC, RSM, RSPB, RSPCA, RSV, RSVP, Rt Hon, Rt Rev (also Rt Revd), RU, rub,