clock case joint

例句：

1. 1. The clock's case joint was loose, causing the watch to rattle.
   这个钟的外壳接合处松动了，导致手表发出噪音。
2. 2. The engineer carefully examined the joint between the gear and the shaft.
   工程师仔细检查了齿轮和轴之间的接合部位。
3. 3.The construction workers were working on the joint where the building met the road.
   建筑工人正在施工，这是建筑物与道路相接的地方。