sill
/sil/
★☆☆☆☆GRE英语词汇
📖 中文释义
- n. 基石, 槛, 窗台, 岩床, 海底山脊, 梁
🔗 释义中的汉语词
🧩 词形变化
复数 sills
📘 English Definition（英文释义）
- n. structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
- n. (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock