短語(yǔ)詞組短語(yǔ)flight t of stairs 階梯步級(jí)a flight of stairs 一段樓梯;飛翔;階梯;一段one flight of stairs 一段臺(tái)階Digital a flight of stairs 數(shù)字階梯a whole flight of stairs 整整一段樓梯take a flight of stairs 走一段樓梯on one flight of stairs 在一個(gè)樓梯;一個(gè)樓梯;乘一段樓梯;上一個(gè)飛行的樓梯 返回 flight of stairs