back staircase
回到楼梯
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The servants only could use the back staircase.
仆人们只能使用后楼梯。
youdao
The other one (fire extinguisher) is on the wall at the back staircase.
另一个消防器在后面楼梯的墙上。
One is outside, the library. The other one is on the wall at the back staircase.
一个在图书馆外面，另一个在后面楼梯的墙上。
Karen screamed and turned and started running and he ran after her and he caught her on the staircase and brought her back.
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