sill: [OE] Sill originally denoted the ‘foundation of a wall’. Not until the 15th century was it used for the ‘base of a window-frame’. It is related to German schwelle ‘threshold’ and possibly also to English sole ‘underside of the foot’.
sill (n.)
Old English syll "beam, threshold, large timber serving as a foundation of a wall," from Proto-Germanic *suljo (cognates: Old Norse svill, Swedish syll, Danish syld "framework of a building," Middle Low German sull, Old High German swelli, German Schwelle "sill"), perhaps from PIE root *swel- (3) "post, board" (cognates: Greek selma "beam"). Meaning "lower horizontal part of a window opening" is recorded from early 15c.
实用例句
1. A thin, glistening thread of moisture ran along the rough concrete sill.
在粗糙不平的水泥窗台上有一条细细的发光水印。来自柯林斯例句
2. The Royal Airforce sill remained dangerously short of bombers.
英国皇家空军仍未脱离极为缺乏轰炸机的危境.来自《简明英汉词典》
3. The blind was drawn, but I found a rift at the sill.
遮帘拉了下来, 但我在窗台上找到了一个缝隙.来自英汉文学 - 盖茨比
4. Whitlock was perched on the sill of the room's only window.
