本文為英文版的機器翻譯版本，如內容有任何歧義或不一致之處，概以英文版為準。
下列關鍵字會保留給 DynamoDB 使用。請勿在表達式中使用這些單字作為屬性名稱。此清單不區分大小寫。
如果需要撰寫的表達式會包含與 DynamoDB 保留字衝突的屬性名稱，您可以定義要取代保留字的表達式屬性名稱。如需詳細資訊，請參閱DynamoDB 中的表達式屬性名稱 （別名）。
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