求翻译：2005年大学毕业后作为ABAP开发者参与的项目全是对日的，有制造业的有房地产业的有商社的，都为企业的经营管理提供支持服务的SAP系统的开发。虽然潜心于销售、物料、会计、生产等模块程序的开发约有三年半的时间，但烦恼的事情也一直存在着。这就是难懂的“业务”。经过努力的话，实现的方法可以掌握起来，但最终做出来的东西究竟是基于着怎样的业务需求呢？会计管理中每一次交易后的记账方法又是什麽呢？另外、维护文档中日语的读写虽然没有问题，但假如一旦到了日方现场能不能顺利地与客户沟通交流呢？像这些问题如果不去亲身体验，无论怎样的专注和揣测都是不能从根本上解决的，对人的职业发展来说也是重大的限制。当时我是这样认为的。是什么意思？

In 2005 after graduating as an ABAP developers involved in projects all day, real estate companies in the manufacturing sector, providing support services for enterprise operation and management of development of the SAP System. Although concentrated in modules such as sales, accounting, production materials, program development time of about 3.5 years, but trouble is always there. This is difficult to understand the "business". Through the efforts, implemented methods can be mastered, but eventually make things based on what exactly is business needs? After every transaction in accounting management accounting method is what does? In addition, maintenance, although there is no problem to read and write Japanese in a document, but once the scene of the Japanese side can successfully communicate with the customer? As these issues without first-hand experience, no matter how dedicated and speculation is not fundamentally resolve, is also significant restrictions on people's professional development. I think so.