单词	imperturbable
释义	im·per·turb·a·ble (ĭm′pər-tûrbə-bəl) adj. Unshakably calm and collected: "His ... facial expression never deviated from the imperturbable mask" (Molly Worthen). See Synonyms at cool. im′per·turb′a·bili·ty, im′per·turba·ble·ness n. im′per·turba·bly adv.
随便看	rack rack rack rack and pinion rack-and-pinion rack brain rack brain rack brains racker racket racket racketeer rackets rackets rackety Rackham rack (one's) brain rack one's brain rack one's brain rack one's brains rack (one's) brains/brain rack out rack railway rack-rent rack up

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