He was a dull man and you had to explain things very slowly to him.
他脑筋迟钝,你必须慢慢地给他解释事情。
A constant guest is never welcome.
久住非佳宾,常来不欢迎。
A foreigner living in a Swedish village wrote to the Ombudsman complaining that he had been ill-treated by the police, simply because he was a foreigner.