| 单词 | knock out |
| 释义 | knock out 1. To render unconscious. 2. Sports To defeat (a boxing opponent) by a knockout. 3. To render useless or inoperative: The storm knocked out the phones. 4. Informal To excite or overwhelm, especially by being sexually attractive. 5. Informal To exert or exhaust (oneself or another) to the utmost: knocked herself out to be ready on time. 6. Informal To produce in abundance: The workers knocked out 500 parts in one hour. 7. To inactivate (a gene or genes) by genetic manipulation so that the resulting phenotypic effects can be observed. Main Entry: knock |
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