The differences between them lie in the fact that the peculiar objective elements following the dummy verb are verbal, disyllabic, more noble and formal and followed by preposition.

• 语义上通常是表示较庄重、较正式的活动；其受事成分居于句中的位置很独特：由介词引出、放在主语位置上或在另一个动宾短语里。