瞭解報表Get started with reports[GA4] Google Analytics (分析) 報表總覽Data freshness[GA4] 資料更新間隔Dimensions & metrics[GA4] Analytics (分析) 維度和指標Custom dimensions & metrics[GA4] 自訂維度和指標Get started with Explorations[GA4] 開始使用「探索」Reporting identity[GA4] 報表識別資訊Analytics Insights[GA4] Analytics (分析) 深入分析