royal jelly

substance secreted by worker bees and fed by them to future queen bees 蜂王浆.

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 blue, Royal Commission, Royal Highness, Royal Ordinance, royalist, royally, royalty, rpm, RRP, RSA, RSC, RSM, RSPB, RSPCA, RSV, RSVP, Rt Hon, Rt Rev (also Rt Revd), RU, rub, rub (sb/oneself/sth) down, rub (sth) off, rub away,