The number of patrons at Robinson's coffee house was gradually decreasing, though not rapidly.

鲁宾逊咖啡馆的顾客数量在逐渐减少，尽管速度不快。

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An airline faces challenges as the number of travelers declines.

一家航空公司因旅客数量下降而面临挑战。

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The number of people officially diagnosed with HIV falls short of earlier projections.

官方确诊的HIV感染者人数低于早先的预测。

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The number of detainees in the metropolitan region has skyrocketed by 200%, now totaling 21,000 people.

该都市区域的被拘留者人数猛增了200%，目前总计达21,000人。

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The number of tourists visiting the pond overseas has decreased dramatically.

海外游客参观该池塘的数量已急剧减少。

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The variation in the human gene is limited by the number of possible permutations.

人类基因的变异受到可能排列数量的限制。

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The number of independent businesses is expected to decrease from 250 to 120.

独立企业的数量预计将从250家减少到120家。

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The number of dedicated Rastafarians in South Africa was under ten thousand, and he proudly identified as one of them.

南非的忠实拉斯塔法里教徒人数不到一万，而他自豪地认同自己是其中一员。

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The number of employees declined sharply, falling from 217,000 to 114,000 workers.

员工人数急剧下降，从21.7万人减少到11.4万名工人。

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The report will show a declining trend in the number of couples who decide to hitch.

报告将显示决定结婚的情侣数量呈下降趋势。

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The number of managers must double to reach a hundred in three years.

管理人员数量必须在三年内翻倍至一百人。

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The number of lamps we operated required four extension cords to power them all.

我们使用的灯具数量之多，需要四个接线板才能全部供电。

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There has been a roughly twofold increase in the number of deployed warship outside European waters.

在欧洲水域外部署的战舰数量大约增长了两倍。

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The number of females in this category surged by 120% during the ten-year period.

这一类别中的女性人数在十年间激增了120%。

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The number of temperature readings she recorded on the chart is three: 98.4, 64, and 105.

她在图表上记录的温度读数的数量是三个：98.4，64和105。

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