... access stairs内部楼梯〖不作为出口楼梯从一层通向另一层的楼梯〗 refuge stairs安全梯, 太平梯 cockle stairs螺旋梯 ...
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Portable wooden stairs connected its four stories and if the village came under attack, residents could take refuge, pulling the stairs up behind them and firing at the enemy from the upper Windows.
便于拆卸的木质台阶四层楼，如果村子遇到了袭击，村民可以到这里庇护，把台阶拉上去，并且在楼上的窗口向敌人开枪。
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