各位高人，这一句话咋翻译
The interaction between client modules and the CatalogData module is synchronous. Online shoppers who ask to see the catalog wait for the application to display it. To provide a synchronous interaction, you implement this interaction with Java RMI. This means that client modules will request catalog data by calling methods of the CatalogData EJB module.
参考答案:你弄点空格行不？看起累