clockwork /ˈklɒkˌwɜːk/

• 1. 

  ADJ A clockwork toy or device has machinery inside it which makes it move or operate when it is wound up with a key. 带发条装置的 [ADJ n]

  例：

  ...a clockwork train set.

  …一套带发条装置的火车玩具。

• 2. 

  PHRASE If you say that something happens like clockwork, you mean that it happens without any problems or delays, or happens regularly. 极为准确地; 极有规律地

  例：

  The president's trip is arranged to go like clockwork, everything pre-planned to the minute.

  总统的行程安排得极其周密，每一件事情都事先安排到了分钟。