xiǎo / shí / hou / wǒ / cháng / zài / lì / shǐ / shū / shàng / kàn / dào / Xié / hé / Fēi / jī / de / zhào / piàn小时候,我常在历史书上看到协和飞机的照片。When I was young, I often saw pictures of the Concorde in history books.