名词
中文翻译：Unknown
同义词：
['outer stairs', 'exterior steps', 'external staircase']
例句：
-
1. The architect designeda new exterior stair for the building.
建筑师为大楼设计了一个新的外墙楼梯。
-
2.The old mansion had several exterior stairs leading to different floors.
这座老宅有好几个通向不同楼层的外墙楼梯。
-
3.The construction workers were busy installing exterior stairs in the basement.
建筑工人正在忙着在地下室安装外墙楼梯。