Allowing only a compile-time dependency from infrastructure code to the business logic code (never the reverse). That means that the business logic exposes public methods (which could be invoked from outside) and/or exposes required interfaces, and the infrastructure layer/module implements them.
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，更多细节参见WPS下载最新地址
房屋局局長何永賢表示，房屋署派員勘察七座受災樓宇，發現鋼筋混凝土出現不同程度的弱化及損毀，並形容「內傷」很嚴重，難以保證長遠安全，樓宇雖無即時倒塌危險，但估計長遠需要拆卸的可能性甚高。
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There's a broader pattern here. External data sources (Shopify, third-party APIs, user input) will always find the exact edge case your infrastructure doesn't handle. They don't do it maliciously. They just don't know (or care) about your CSV pipeline, your column count, your COPY command. They're just sending you the data they have.