第一阶梯英语

stairs更准一点

stairs,ladder ,step都行

以下答案适合小学生参照。一楼：First floor 二楼：Second floor三楼：Third floor四楼：Fourth floor五楼：Fifth floor.

staircase

standard不行么

阶梯:Ladder 名词 1.ladder 2.stairs flight 楼梯：Staircase 名词 1.stair 2.staircase 3.stairs 4.stairway Step 也可以做台阶的结实

阶梯 ladder书是人类进步的阶梯Books are the ladders for us to climb high.stairs: n. 楼梯书是人类进步的阶梯Books are the mankind's progressive stairs.ladder: [ 'lædə ] n. 梯子 例句与用法: 1. Hard work is often a ladder to success. 发奋工作常是通向成功的阶梯。 2. The ladder has eight rungs. 这梯子有八级。 stairs例句与用法: 1. The old woman fell down a flight of stairs. 那位老太太从一段楼梯上摔了下来。 2. Could you help me up the stairs? 你能扶我上楼梯吗？ 3. Your heart beat will quicken when you run up the stairs. 跑上楼梯时，心跳会加速。 4. They rushed up the stairs. 他们冲到楼上。 5. He ran down the stairs. 他跑下楼梯。