Definition: a set of stairs connecting one floor to another in a building Level: C2
电梯坏了，所以我们不得不爬一段楼梯。
The elevator was broken, so we had to climb ___a ___flight ___of ___stairs.
他下了一段楼梯，到达了一扇门。
He descended ___a ___flight ___of ___stairs and reached a door.
每天早上，我爬一段楼梯到我的办公室。
Every morning, I walk up ___a ___flight ___of ___stairs to my office.
