Our classmates want her to represent the class in the school contest.
我们的同学想让她代表我们班级在学校内比赛。
In addition to representing known actors, the class diagram will often represent the server and receiver roles.
类图除表示已知的参与者之外,还常常表示服务器角色和接收器角色。
Just as you would for subsystems, you should represent the services as operations on this class.
就像你处理子系统时,你应当将服务看作这个类上的操作一样。
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