1·He is often lovingly termed a walking dictionary.
他常被亲切地称为活字典。
2·In a word, he is a walking dictionary.
总而言之，他是一部活字典。
3·She's a walking dictionary.
她是一本活字典。
4·He is what is called a walking dictionary.
他就是人们所谓的一本活字典。
5·Mr. Johnson was known as a walking dictionary.
约翰逊先生被称作一本活字典。