Unlike other location-based application, echoecho doesn't force you to constantly broadcast your own location. Instead, the application takes the opposite route.
然而，和别的位置应用不同的是双重回音并不强迫你去持续的广播你的位置；取而代之，这款应用采取了相反的方式——你不告诉别人你的位置，你去询问别人的位置。
Explore a neighbourhood of opposite landscapes, complete numerous challenges and learn from the wisdom of Mamie Denise in this unique location.
探索出对面的风景，完成许许多多的挑战居民区和借鉴玛米丹尼斯在这个独特的位置的智慧。
Mark location of the holes for the opposite leg and drill three more holes.
标注出对面支柱的孔洞位置，并打钻出三个孔。
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