padlock
/ˈpædlɔk; `pædˌlɑk/ n
detachable lock with a U-shaped bar or chain that fastens through the loop of a staple or ring 挂锁; 扣锁. =>illus at chain 见chain插图. padlock, v [Tn, Tn.pr]
fasten (sth) with a padlock 用挂锁锁（某物）
The gate was padlocked. 大门用挂锁锁著.
She padlocked her bike to the railings. 她用挂锁把自行车和栏杆锁在一起.