Compile the program again to see if the error reoccurs.
请重新编译程序，看错误是否会再度发生。
Once the expansion occurs on a newly created entity reference node, it never reoccurs.
新创建的实体引用节点进行扩展后，该扩展永远不会再次进行。
Once the expansion occurs on a newly created entity reference node, it never reoccurs.
新创建的实体引用节点进行扩展后，该扩展永远不会再次进行。
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