backwardness的例句（backwardness在句子中的用法）

• Backwardness must be previewed before it can be changed. 认识落后才能改变落后.
• Backwardness in high quality epitaxial wafer has limited greatly the development of Chinese LED industry. 高质量的外延片已经成为中国LED产业发展的主要制约环节.
• The basic cause of Russian backwardness lies in its peasants. 俄国落后的根本原因就是农民因素.
• Those who were in various degree of backwardness lived inland. 那些在不同程度上较为落后的人住在内地.
• We are struggling with backwardness. 我们在和落后现象做斗争.