rats

interj (dated infml 旧, 口) (used to express annoyance or contempt 用以表示恼怒或鄙视).

rather too, ratification, ratify, rating, ratio, ratiocination, ration, rational, rationale, rationalism, rationalist, rationalistic, rationality, rationalization, rationalization, rationalisation, rationalize, rationalize, rationalise, rationally, rationing, ratline (also ratlin), rattan, ratter, rattle, rattlesnake, rattling, ratty, raucous, raucously, raucousness, raunchily, raunchiness, raunchy, ravage, rave, ravel, raven, ravening, ravenous, ravenously, raver,