Development role

• 发展规律

Development role的用法和样例：

例句

1. Euphemisms also have their law of development.
   委婉语还有其自身的发展规律。
2. They must be the laws of historical development which determine the transition from one period to another.
   它们必定是决定从一个时期过渡到另一个时期的历史发展规律。