| 单词 | rare |
| 释义 | rare 1. adj. (rarer, rarest) 1. seldom done or found or occurring, uncommon, unusual, few and far between. 2. exceptionally good (had a rare time). 3. of less than the usual density, with only loosely packed substance (the rare atmosphere of the mountain tops). Phrases and idioms rare bird = RARA AVIS. rare earth 1. a lanthanide element. 2. an oxide of such an element. rare gas = noble gas. Derivatives rareness n. Etymology: ME f. L rarus 2. adj. (rarer, rarest) (of meat) underdone. Etymology: var. of obs. rear half-cooked (of eggs), f. OE hrer |
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