sill的例句（sill在句子中的用法）

• door sill 门槛
• Better fastening between sill and wall footing would be beneficial. 改善地基与墙基之间的连结是有益处的.
• 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.
• Whitlock was perched on the sill of the room's only window. 惠特洛克坐在房间里仅有的那扇窗户的边沿上。
• 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。