详细解释:a. 扁平足的, 断然的, 直截了当的
词型变化：
名词:flat-footedness副词:flat-footedly英语解释：
形容词 flat-footed:
with feet flat on the ground; not tiptoeunprepared and unable to react quicklyhaving broad flat feet that usually turn outwardwithout reservation例句：
His speed and skill makes other players look flat-footed.他速度快、 技术好，使其他运动员相形见绌。