1. He unbolted the shackles on Billy's hands. 他打开比利的手铐。
2. The door unbolted, whacked back against the wall. 门打开时,吧嗒一声门儿碰着墙。
3. The thief attempting to purloin a steel cable from a lift shaft - and unbolted it while standing in the lift which then plummeted to the ground, killing him. 试图偷自动升降梯钢缆的贼。他站在电梯中时打开了钢缆,随后电梯猛然坠落致其死亡。
4. Thee thief attempting to purloin a steel cable from a lift shaft - and unbolted it while standing in the lift which then plummeted to the ground, killing him. 试图偷自动升降梯钢缆的贼。他站在电梯中时打开了钢缆,随后电梯猛然坠落致其死亡。