MessageConverters有责任完成JMS消息与“plain old objects”之间的转换，它在本质上与XML/对象间映射器无异，但它支持JMS转换。
MessageConverters are responsible for conversion between JMS messages and "plain old objects" and are identical in spirit to XML/Object mappers but with a JMS twist.
为房屋中的人分配责任，并确保家庭作业在期限内完成。
Assign responsibilities around the house and make sure homework deadlines are met.
角色定义帮助人们理解他们的责任，以及完成分配给他们任务所需要的技巧。
Role definitions help people understand their responsibilities and the skills they need to perform tasks assigned to them.
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