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“脆弱地”的英語可以翻譯為：flimsily，frailly ...

在水印數據半脆弱地嵌入載體信息的同時, 密鑰也被穩(wěn)健地隱藏在載體信息中.While inserting the semi - fragile mark, the key is also robustly embedded into the host....