lack of normal development of intellectual capacities
例句
用作名词(n.)
The backwardness of China must be changed.中国的落后状态必须改变。
The long-term interests of the whole nation hinge on these reforms, without which we cannot overcome the present backwardness of our production technology and management.进行这些改革，是全国人民的长远利益所在，否则，我们不能摆脱目前生产技术和生产管理的落后状态。
