I had a embarrassing experience this evening.I saw a man standing at a bus stop when I was on my way home.Though I saw him from behind,I was sure he was a friend of mine that I hadn't seen for a long time. I gave him a tap at his shoulder with my umbrella and shouted to him at the same time. He turned round, completely taking by surprise. Unfortunately, he was not my friend but a complete stranger.I was terribly embarrassed,for I didn't know how to explain to him.I can only say in a low voice,"I'm so sorry,sir."After that I walked away as quickly as possibly.
只改了语法错误,语言上的过于中文化就没管了.