So as to ascend a flight of stairs; to the floor at the top of a staircase.
单词 | θ108271 |
释义 | the world > movement > motion in a certain direction > upward movement > [adverb] > so as to ascend stairs (2) upstairs1598 So as to ascend a flight of stairs; to the floor at the top of a staircase. upstair1627 = upstairs, adv. n.1. |
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