 |
| |||
| straight stairs, straight flight of stairs; straight stairs, fliers US flyers staircase; straight flight stair; straight flight; straight-run stair; straight stair | |||
|
gerade Treppe : 2 短语, 1 学科 |
| 建造 | 2 |
|
| |||
| straight stairs, straight flight of stairs; straight stairs, fliers US flyers staircase; straight flight stair; straight flight; straight-run stair; straight stair | |||
|
gerade Treppe : 2 短语, 1 学科 |
| 建造 | 2 |