wáng / lǎo / shī / shú / xī / xué / xiào / lǐ / de / gè / zhǒng / guī / dìng / dà / jiā / dōu / shuō / tā / shì / gè / huó / zì / diǎn

王老师熟悉学校里的各种规定，大家都说他是个活字典。

Teacher Wang knows all the school rules, so everyone calls him a walking dictionary.