一旦发生飞机撞击以及火灾等意外，在大楼上的人是否能够安全撤离？

Will the people in the buildings will withdraw in time in event of such accidents as air collision or fire.

youdao

一旦发生飞机撞击以及火灾等意外，在大楼上的人是否能够安全撤离？

Will the people in the buildings will withdraw in time in event of such accidents as air collision or fire.

youdao