写出下列单词的名词形式operate( ) decide( ) explain( ) enjoy( )imagine( ) invent ( ) speak( ) succeed( ) suggest( ) treat( )

问题描述:

写出下列单词的名词形式
operate( ) decide( ) explain( ) enjoy( )
imagine( ) invent ( ) speak( ) succeed( )
suggest( ) treat( )

operation decision explanation enjoyment
imagination invention speech success
suggestion treatment