| 单词 | protraction |
| 释义 | protraction /proh trak"sheuhn, preuh-/, n. 1. the act of protracting; prolongation; extension. 2. protrusion. 3. something that is protracted. 4. a drawing or rendering to scale. [1525-35; < LL protraction- (s. of protractio) prolongation. See PROTRACT, -ION] |
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