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| PREFIX |
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| /əʊvə/ |
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| 1 | too muchused with many verbs, nouns, or adjectives 表示“过分”（与许多动词、名词或形容词连用） | to overheat 使过热 | | an overreaction 过激反应 | | overconfident (=so confident that you are likely to make mistakes) 过分自信的 | |
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| 2 | more thanused with some nouns 表示“超过，更多”（与某些名词连用） | a club for the over-sixties (=people who are more than 60 years old) 60岁以上者参加的俱乐部 | |
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| 3 | on or aboveused with some nouns 表示“在上面，在上方”（与某些名词连用） | travelling overland 由陆路旅行 | |
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| 4 | on top ofused with some nouns 表示“在顶部，在上部”（与某些名词连用） | over-trousers (=trousers worn on top of other trousers to protect them) （套在别的裤子上的）护裤 | |
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