问题描述：
分析英语句子成分
In order for the structure to achieve the size and strength necessary to meet its purpose,architecture employs methods of support that,because they are based on physical laws,have changed little since people first discovered them-even while building materials have changed dramatically.
In order for the structure to achieve the size and strength necessary to meet its purpose,architecture employs methods of support that,because they are based on physical laws,have changed little since people first discovered them-even while building materials have changed dramatically.
问题解答：
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