locking knob

英 美
  • 锁柄;锁钮
  • knob n.旋钮;把手;瘤;节;圆丘
  • locking n.锁定动词lock的现在分词形式.
    1. He put his hand on the knob and opened it.
      他伸手拉住锁钮,打开了保险柜。