ratiocination

n. 推理，推论

raspy, Rastafarian, rat, rat-a-tat-tat, rat-tat, ratatat, ratbag, ratchet, rate, rate-capping, rateable, ratepayer, ratfink, rather, rather than, rather too, ratification, ratify, rating, ratio, ration, rational, rationale, rationalism, rationalist, rationalistic, rationality, rationalization, rationalization, rationalisation, rationalize, rationalize, rationalise, rationally, rationing, ratline (also ratlin), rats, rattan, ratter, rattle, rattlesnake, rattling,