deadbolt
['ded,bəult]
n. 门栓
同义词
参考例子
1.Have good locks (deadbolt) on all doors and windows.
有好的锁（门栓）在所有门和窗。
2.threw the deadbolt closed and peeked out the peephole.
插紧门栓，又眯着眼睛从窥孔向外看。
3.I walked to the door, pushed in the lock, threw the deadbolt closed and peeked out the peephole.
我走到门后，推上门锁，插紧门栓，又眯着眼睛从窥孔向外看。
英文解释
n.
1.the part of a lock that is engaged or withdrawn with a key
网络释义
deadbolt
固定栓; 锁定插销; 死栓; 锁扭;