A steep stair is compared, every time I go downescalator, rotary is a little slippery stair.
就是楼梯比较陡了点，我每次都是扶扶梯走下来，楼梯有点滑。
2
A brief act of kindness brings an unexpected insight. I was shopping at a department store and had just boarded the downescalator when I noticed a woman standing to the side.
[In one experiment, researchers] found that twice as many mall shoppers who had just ridden an up escalator contributed to the Salvation Army than shoppers who had just ridden the downescalator.