tenon

例句：

1. 1. The carpenterused a tenon to join the twopieces of wood together.
   木匠用一个榫头将两块木头连接在一起。
2. 2. The constructionof the bridge required precise measurements and theuse of tenons.
   建造这座桥需要精确的测量和榫的使用。
3. 3. The carpenter carefully carved each tenon toensure it fit perfectly into the other piece.
   木匠仔细雕刻每个榫头，确保它们完美地与其他部分匹配。