over-achiever
n.
also overachiever, 1953, from over- + agent noun of achieve, v.. Related: Over-achieve; over-achieving.
| 词汇 | over-achiever | 
| 词根词缀 | Online Etymology Dictionary over-achiever n. also overachiever, 1953, from over- + agent noun of achieve, v.. Related: Over-achieve; over-achieving. | 
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