In most cultures, when you meet someone for the first time,  is usual to greet him.(one) a young woman from England went to Hong Kong to study. When she first arrived, she knew (less) about the Chinese culture of language. One day, she went to a bank to get some money. To her surprise, the bank clerk asked her if she had had her lunch. In the British culture it would mean an invitation(邀请) to lunch. Between unmarried young people it can also mean the young  man) interest in dating the girl. Since this bank clerk was a (strange) to the British woman, she was very puzzled(疑惑的) and (quick) answered that she had eaten already. After that she was even more surprised when one of the teachers asked her same question.

    By now she had understood that it couldn't be an invitation was puzzled why they asked it. In the following days, she was asked the same question again and again and she spent many hours (try) to understand why so many people kept asking this. At last she thought that these people be concerned about(关心) her health. She was rather thin at that time and she thought they must be worrying that she was not eating well.