Unverified80% confidenceTradeoffTime unknown
布置难度与效果呈反比权衡:铝箔数字气球+气球链(含打气筒和胶点)虽单价高但15分钟可完成;散装气球手工造型出片好但需1-2小时且需打气工具
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80%
Confidence
Long-term
Relevance
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