请教一个有关介词的问题Expertssaidthedeploymentcouldhaveaknock-oneffectinChina,whereitmighthelpstifleseparatistactivitywithintheXinjiangUygurautonomousregion.句末为什么用within,而不是in?麻烦各位回答的

请教一个有关介词的问题
Experts said the deployment could have a knock-on effect in China, where it might help stifle separatist activity within the Xinjiang Uygur autonomous region.
句末为什么用within,而不是in?
麻烦各位回答的朋友,把in和within的用法比较讲详细些,O(∩_∩)O谢谢

参考答案


within表示在.范围以内,放在此处意思更为准确

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