| 释义 |
sill AHD[sĭl] D.J.[sɪl]K.K.[sɪl]n.（名词）- The horizontal member that bears the upright portion of a frame, especially the horizontal member that forms the base of a window.底框梁：框架中支撑垂直部份的水平部件，尤指构成窗台底基的水平部件
- Geology An approximately horizontal sheet of igneous rock intruded between older rock beds.【地质学】 岩床：插入两块老岩层之间的近乎水平的火成岩岩层
- Middle English sille 中古英语 sille
- from Old English syll [threshold] 源自 古英语 syll [门槛]
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