endpiece of complement

例句：

1. 1. The endpiece of the pipe is where it connects to the socket.
   这个管道的端部是它连接到插座的地方。
2. 2. The engineer carefully cut the endpiece off the machine.
   工程师小心翼翼地把机器的端部切掉。
3. 3. The endpiece of the puzzle is the final piece that needs to be put together.
   拼图的端部是最后需要拼在一起的那一块。