例:The methods that a community devises to perpetuate itself come into being to preserve aspects of the cultural legacy that community perceives as essential.
分析:主語:The methods;謂語:come into being;that a community devises to perpetuate itself為定語從句,修飾the methods;不定式to表示目的狀語;that community perceives as essential為定語從句,修飾the cultural legacy。