a mile一英里aart.一(个)；每一(个)；任一(个)n.英语字母表的第一个字母；学业成绩得优者；表示“最好”的符号A compromise of morality.道德的沦丧a slapdash piece of writing一篇粗制滥造的文章a foolproof security system可靠的安全系统.A shrapnel broke his leg.他的腿给弹片打断了。a blacksmith shoeing a pony给小马钉马蹄铁的铁匠.a lioness guarding her cubs守护幼崽的母狮a carpet four metres square四米见方的地毯a narrow closely woven tape一个很窄的近似于机织的带子a drive to acquire power.希望得到权力的强烈的动力。a school physics department学校的物理系