研究：有哥哥的孩子语言能力发育更迟缓
<p>很多人想当然地以为，有哥哥姐姐陪伴的孩子学语言会更快，因为有更多人可以和自己交流。但是科学家的一项研究却得出了相反的结论。</p><p><span word="Having">Having</span> <span word="an">an</span> <span word="older">older</span> <span word="brother">brother</span> <span word="comes">comes</span> <span word="with">with</span> <span word="plenty">plenty</span> <span word="of">of</span> <span word="benefits">benefits</span>. <span word="Big">Big</span> <span word="brothers">brothers</span> <span word="tend">tend</span> <span word="to">to</span> <span word="look">look</span> <span word="out">out</span> <span word="for">for</span> <span word="their">their</span> <span word="younger">younger</span> <span word="counterparts">counterparts</span>, <span word="and">and</span> <span word="despite">despite</span> <span word="the">the</span> <span word="occasional">occasional</span> <span word="rocky">rocky</span> <span word="moment">moment</span> <span word="here">here</span> <span word="and">and</span> <span word="there">there</span>, <span word="many">many</span> <span word="siblings">siblings</span> <span word="enjoy">enjoy</span> <span word="life">life</span>-<span word="long">long</span> <span word="close">close</span> <span word="relationships">relationships</span>. <span word="However">However</span>, <span word="a">a</span> <span word="new">new</span> <span word="study">study</span> <span word="finds">finds</span> <span word="an">an</span> <span word="interesting">interesting</span> <span word="downside">downside</span>: <span word="children">children</span> <span word="with">with</span> <span word="older">older</span> <span word="brothers">brothers</span> <span word="take">take</span> <span word="longer">longer</span> <span word="when">when</span> <span word="it">it</span> <span word="comes">comes</span> <span word="to">to</span> <span word="developing">developing</span> <span word="language">language</span> <span word="skills">skills</span>.</p><p>有一个哥哥好处多多。哥哥通常都会保护弟妹，尽管偶尔也会吵架，但许多兄弟或兄妹一辈子关系都很亲密。然而，一项研究发现了一个有趣的弊端：有哥哥的孩子学语言更慢。</p>
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