亲爱的猪小呢
stair,staircase都有楼梯的意思!go upstair :上楼go downstaira:下楼 downstairs :a. 楼下的 ad. 在楼下 n. 楼下upstairs:a. 楼上的 ad. 在楼上,往楼上 n. 楼上
天才少女JESSICA
台阶 step,stair 关联词条:sidestep ,pedestal sit box steps step bench terraces例句:参观的人成千上万，把台阶踩得不像样子了。The steps had been worn away by the feet of thousands of visitors.他在石头台阶上（跌倒了，）擦破了小腿的皮。He barked his shins (by falling) against some stone steps.小心那个台阶！Mind that step!
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