But their surfaces bear witness to homely labor: Topping the tallest stone, once part of a trilithon, is a tenon—half of a mortise-and-tenon joint borrowed from woodworking.
但巨表面见证了平凡劳动:曾是组成分最块巨有一个凸榫——是从木材加工借鉴而来半个榫臼接头。
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