单词	fossil
释义	fossil —fossil /ˈfɒs.əl/ aep /ˈfɑː.səl/ Ⅰ noun [C] (IN ROCK) ► F0 the shape of a bone, a shell, or a plant or animal that has been preserved in rock for a very long periodThesaurus+: ↑Palaeontology and fossils Ⅱ noun [C] (PERSON) ► F0 INFORMAL HUMOROUS an old person, especially one who will not accept new ideasThesaurus+: ↑People who are boring and old-fashioned
随便看	under sb's thumb underscore undersea undersecretary under sedation, anaesthetic, etc. undersell undershirt underside undersize undersized understaffed understand understandable understandably understanding understand one another/each other understand sb to mean sth under starter's orders understate understated understatement understudy under sufferance undertake undertaker

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