去年盛夏，我到美国旧金山探亲，闲暇，便一人去大街上溜达。午后的骄阳，灼热难耐。于是，我走进一家超市，在雨具部动手挑选了一把颜色鲜艳的碎花布小伞，然后到大门口在计算机的协助下，付款、消磁、开票。走出超市大门，我撑开花布小伞，遮挡骄阳。可是，没走多久，我... In the summer of last year, I went to San Francisco, visiting relatives in the United States. When I was idle, I walked alone on the street. The sun in the afternoon is hard to bear. So, I walked into a supermarket, hand-picked a colorful floral cloth umbrella in the rain gear department, and then went to the gate with the help of a computer to pay, degauss, and invoice. Going out of the supermarket door, I supported the flowering cloth umbrella to cover the sun. However, it didn’t take long for me to...