wellhole

Nghĩa (Tiếng Anh)

1. The open space in a floor, to accommodate a staircase.
2. The open space left beyond the ends of the steps of a staircase.
3. A cavity which receives a counterbalancing weight in certain mechanical contrivances, and is adapted also for other purposes.

Từ đồng nghĩa

well

stairwell

well hole

stair well

Bản dịch

kuyu

Từ nguyên (Tiếng Anh)

From well + hole.