watch spring

• n. 表的发条

例句

用作名词 (n.)

1. Your swing is like a tight-wound spring.
   你的挥棒像是上紧的发条一样。
2. After the clockwork of the watch was cleaned the watch kept perfect time.
   那块表的发条装置擦干净后，走起来就非常精确了。