Short people and those of average height can camouflage and sort of disappear in a crowd when they choose to.

矮个子以及中等身材的人可以根据自己的需要在人群中伪装甚至消失在人们视线之外。

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Except morbidity number rapid increase, morbidity crowd displays the become younger in average age trend also gradually.

除了发病人数急剧增加外，发病人群也日益呈现出年轻化趋势。

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Medium high-risk groups (in addition to the crowd outside the Gay men) HIV infection rates are on average less than 1%, the AIDS epidemic is still in the overall low prevalence level.

高危人群中（除男性同性恋人群外）艾滋病病毒平均感染率均低于1%，艾滋病疫情整体仍处于低流行水平。

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It is an established fact that college students love to talk their way to intellectual discovery, though the kids in this crowd were more smartly dressed than your average twenty-something.

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Of course, the crowd must be fed: in an average year, nearly half a million roast chickens, a quarter million sausages, 45, 000 pig's knuckles, and over one hundred whole oxen, spit roasted on giant rotisseries, are consumed.

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In 1995-96, their most recent season in the top division, the premiership, City's average crowd was 27, 941.

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