出没无常是什么意思_出没无常用英语怎么说_出没无常的翻译_出没无常翻译成_出没无常的中文意思_出没无常怎么读,出没无常的读音,出没无常的用法,出没无常的例句

释义

• appear and disappear without regularity  
  出没无常;
• appear and disappear at intervals  
  出没无常;
• appear and disappear unexpectedly  
  出没无常;
• appear at intervals  
  出没无常;