imperfects缺陷imperfectadj.不完美的；有缺点的；未完善的imperfect line drawing不完整线图imperfect labor market不完全劳动力市场imperfect substitution不完全替代品imperfect polarization不完全极化imperfect arrhenogenic不完全产雄的imperfect flower-form不具备花型的imperfect magnetization不理想磁性imperfective participle未完成体分词imperfect odontogenesis牙生长不全imperfect market system市场制度