The UML specification does not require attributes and operations visibility to be displayed on the class diagram, but it does require that it be defined for each attribute or operation.是什么意思_The UML specification does not require attributes and operations visibility to be displayed on the class diagram, but it does require that it be defined for each attribute or operation.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句