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| ADJ |
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| /ɪnˈæktɪv/ |
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| 1 | not taking part in physical activity or exercise 不活动的；不活跃的；无活动力的 | Physically inactive people are at risk of developing heart disease. 不运动的人有患心脏病的危险。 | | | 1a | not wanting to do anything 不大想动的；懒散的 | | He felt strangely inactive. 他感到莫名的懒散。 | | |
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| 2 | not working or operating 闲置的；不起作用的；废弃的 | an inactive nuclear plant 废弃的核电站 | | | 2a | an inactive disease or other threat is present but not doing anything at this time （疾病或其他威胁）潜伏的，静止性的，非活动性的 | | a city built on a relatively inactive fault line 建在相对不活跃的断层带上的城市 | | | | 2b | an inactive chemical substance does not react strongly with other substances （化学物质）钝性的 | | |
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| DERIVED WORD |
| inactivity noun U |
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| /ˌɪnækˈtɪvəti/ |
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| The players have now had more than a month of inactivity. 球员们现在已有一个多月没有活动了。 |
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