theory and understand

• 理论和认识

theory and understand的用法和样例：

例句

1. To understand a nationality has to depend on its language and culture.
   了解和认识一个民族，不能不依靠其语言与文化的帮助。
2. During the year, the office undertook a variety of activities to promote awareness and understanding of the ordinance.
   年内，公署推行了多项活动，加深市民对条例的理解和认识。