| 单词 | impact |
| 释义 | impact n. & v. --n 1. (often foll. by on, against) the action of one body coming forcibly into contact with another. 2. an effect or influence, esp. when strong. --vtr. 1. (often foll. by in, into) press or fix firmly. 2. (as impacted adj.) a (of a tooth) wedged between another tooth and the jaw. b (of a fractured bone) with the parts crushed together. c (of faeces) lodged in the intestine. Derivatives impaction n. Etymology: L impact- part. stem of impingere IMPINGE |
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