With a bow, she was outside and with a few quick steps hurried down-stairs.
她鞠了一躬，走到外面，快步下了楼。
Even young people should take slow steps to avoid slippering down the stairs.
即使是年轻人也应该迈着缓慢的脚步，避免滑下楼梯。
Add more stairs and steps whenever and wherever you can.
随时随地尽量走楼梯和台阶。
Can you go up the stairs two steps at a time?
你上楼时一次能跨两级台阶吗？
Then I saw a young man run up along the stairs with heavy steps.
只见一个年轻人噔噔噔地顺着台阶跑上来，直奔顶端。
Then I saw a young man run up along the stairs with heavy steps.
只见一个年轻人噔噔噔地顺着台阶跑上来，直奔顶端。
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