Post navigation acumen 详细用法>> n.敏锐;洞察力 [例句] The ongoing chaos has led many voters to question Bush’s acumen. 持续的混乱已使很多选民开始质疑布什的洞察力。 ferrules 英[ˈfɛruːlz] n. (棍杖、伞顶端的)金属包箍,橡皮包头; [词典] ferrule的第三人称单数和复数; [例句]Compression type terminal lugs and ferrules for power cables with copper or aluminium conductors GB/T14315-1993电力电缆导体用压接型铜、铝接线端子和连接管 [其他] 原型: ferrule