footholdWiktionary 原文中文来自 ECDICTn.立足处，据点，根据地构词拆分foot词根/词干+hold词根/词干词源说明From foot + hold.释义（英文）名词 Noun(climbing) A solid grip with the feet.(by extension) A secure position from which it is difficult to be dislodged.(military) Airhead, beachhead, bridgehead