| 单词 | summer | 
| 释义 | sum·mer 2    (sŭmər)n. 1.  A heavy horizontal timber that serves as a supporting beam, especially for the floor above. 2.  A lintel. 3.  A large, heavy stone usually set on the top of a column or pilaster to support an arch or lintel. [Middle English, beam, pack animal, from Anglo-Norman sumer, from Vulgar Latin *saumārius, from Late Latin sagmārius, pertaining to a packsaddle, packhorse, from sagma, packsaddle; see  SUMPTER.]  | 
	
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