“两端首尾相接”可以翻译为 “be joined end to end” 或者 “connect end to end” 。
例如:
These two pipes are joined end to end.(这两根管子两端首尾相接。)
The strips of paper are connected end to end to form a long chain.(这些纸条两端首尾相接,形成了一条长长的链子 。)