如向下途中遇到浓烟，则寻找另一处没有浓烟的走廊或楼梯。

If there is thick smoke, please go down along the stair or corridor without smoke.

youdao

如向下途中遇到浓烟，则寻找另一处没有浓烟的走廊或楼梯。

If there is thick smoke, please go down along the stair or corridor without smoke.

youdao