While it's an improvement, this design still leaves us with an N-to-1 dependency between the subaspect and classes.
虽然有了改进，但是这种设计仍然是一个子方面与类之间的 N 对 一依赖关系。
By collaborating through annotations, the participation responsibility is shifted to individual methods (instead of a participant subaspect).
通过借助注释的合作，参与责任被转移给了每个方法（而不是参与者子方面）。
With a metadata-based subaspect, when a join point in a class changes its characteristics only the annotation for the join point needs to be changed.
利用基于元数据的子方面，当类中的连接点改变其特性时，只有 这个连接点的注释需要改变。
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