分析单一品牌的香烟时，每次要随机选择五只烟，取其平均数据。
For a single brand, five cigarettes were randomly selected for each assay and the data averaged together.
通过在每次看到特定类型的牌时单击相应按钮，您可以调整留在牌组中的牌。
By clicking the appropriate button each time you see a card of a specific type, you can adjust what's left in the deck.
他坚持让我们在每次发牌前都让他来最后切牌。
He insisted that we give him the last cut before every deal.
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