进屋前要脱鞋吗？听听科学研究怎么说
<p>进屋该不该让客人脱鞋？家里来客人时，你是不是也经常纠结这个问题？</p><p>最新研究指出，鞋子带进室内的细菌数量一般都不足以让普通的健康人生病。所以，下次请人来做客时，敞开门欢迎人家就好了！</p><p><span word="Are">Are</span> <span word="you">you</span> <span word="one">one</span> <span word="of">of</span> <span word="those">those</span> <span word="hosts">hosts</span> <span word="who">who</span>'<span word="s">s</span> <span word="immediately">immediately</span> <span word="gripped">gripped</span> <span word="by">by</span> <span word="this">this</span> <span word="conundrum">conundrum</span> <span word="as">as</span> <span word="your">your</span> <span word="guests">guests</span> <span word="step">step</span> <span word="across">across</span> <span word="the">the</span> <span word="threshold">threshold</span> <span word="into">into</span> <span word="your">your</span> <span word="home">home</span>: <span word="Should">Should</span> <span word="you">you</span>, <span word="or">or</span> <span word="shouldn">shouldn</span>'<span word="t">t</span> <span word="you">you</span>, <span word="ask">ask</span> <span word="them">them</span> <span word="to">to</span> <span word="remove">remove</span> <span word="their">their</span> <span word="shoes">shoes</span>?</p><p>客人跨进家门的时候，你是否也纠结过这个难题：应不应该让他们脱鞋呢？</p><p><span word="conundrum">conundrum</span>: <span word="n">n</span>. [<span word="k">k</span>əˈ<span word="n">n</span>ʌ<span word="ndr">ndr</span>ə<span word="m">m</span>] 难题; 复杂难解的问题</p><p><span word="On">On</span> <span word="the">the</span> <span word="one">one</span> <span word="hand">hand</span>, <span word="it">it</span> <span word="makes">makes</span> <span word="you">you</span> <span word="look">look</span> <span word="like">like</span> <span word="a">a</span> <span word="fussy">fussy</span> <span word="host">host</span>. <span word="On">On</span> <span word="the">the</span> <span word="other">other</span>, <span word="what">what</span> <span word="about">about</span> <span word="the">the</span> <span word="legions">legions</span> <span word="of">of</span> <span word="disease">disease</span>-<span word="causing">causing</span> <span word="bacteria">bacteria</span> <span word="that">that</span> <span word="will">will</span> <span word="gleefully">gleefully</span> <span word="leap">leap</span> <span word="off">off</span> <span word="their">their</span> <span word="shoes">shoes</span> <span word="and">and</span> <span word="inevitably">inevitably</span> <span word="infest">infest</span> <span word="your">your</span> <span word="home">home</span>?</p><p>一方面，这让你看起来像个挑剔的主人。另一方面，如果大量的致病细菌大踏步地随着鞋子进入你家，并开始滋生，可怎么办呢？</p><p><span word="Avoiding">Avoiding</span> <span word="bacterial">bacterial</span> <span word="invasion">invasion</span> <span word="at">at</span> <span word="the">the</span> <span word="risk">risk</span> <span word="of">of</span> <span word="a">a</span> <span word="little">little</span> <span word="social">social</span> <span word="awkwardness">awkwardness</span> <span word="seems">seems</span> <span word="like">like</span> <span word="a">a</span> <span word="no">no</span>-<span word="brainer">brainer</span>. <span word="But">But</span> <span word="are">are</span> <span word="shoe">shoe</span> <span word="bacteria">bacteria</span> <span word="something">something</span> <span word="we">we</span> <span word="should">should</span> <span word="really">really</span> <span word="be">be</span> <span word="worried">worried</span> <span word="about">about</span> <span word="in">in</span> <span word="our">our</span> <span word="homes">homes</span>? <span word="Here">Here</span>'<span word="s">s</span> <span word="what">what</span> <span word="science">science</span> <span word="tells">tells</span> <span word="us">us</span> <span word="about">about</span> <span word="how">how</span> <span word="to">to</span> <span word="navigate">navigate</span> <span word="this">this</span> <span word="conundrum">conundrum</span>.</p><p>冒着一点社交尴尬的风险来避免细菌入侵，这似乎是一个挺容易的选择题。但是，我们真的需要担心鞋子带进家里的细菌吗？下面来看看科学家是如何破解这个难题的。</p>
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