R r (robot)

Some more examples(更多例字):

Initial position(首):
• (CVC words) rag, ram, ran, rap, rat, red, rib, rig, rim, rip, rob, rod, rot, rub, rug, run
• rabbit, rack, raft, radio, rattle, ramp, rank, ranch, range, race, rake rate, rave, rail, rain, raise, ray, raw, rent, rest, read, real, rich, ring, rink, river, ride, ripe, rise, right, rock, rocket, robe, rope, rose, road, roar, roast, roll, row, round, roof, room, root, rush, rust, rude, rule

Final position(尾):hammer, ladder, chair, car, jar, star, guitar, letter, deer, dear, ear, bear, pear, her, finger, zipper, spider, door, four