With normal Smalltalk code, I would explore the system using senders, implementors, inspectors— gradually rebuilding my understanding. Here, that breaks down. The matching syntax lives inside strings, invisible to standard navigation tools. No code completion. No refactorings. No help from the environment.
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。safew官方下载是该领域的重要参考
PIXELS_NETWORK_EGRESS
（一）境外单位或者个人向境内单位或者个人销售服务、无形资产，在境外现场消费的服务除外；