dwelt on

• v. 详论(全神贯注)

dwelt on的用法和样例：

例句

1. Stop dwelling on your problems and do something about them!
   别老唠叨你的那些问题，还是做些实际工作解决它们吧！
2. The principal dwelt on traffic safety in his talk.
   校长没完没了地谈论交通安全问题。