內容簡介
這本書的每一頁的大小都不同，逐次變長又變大，也就是工地交通工具車一台比一台長，一台比一台大。
Dump trucks, cement mixers, cranes—what a treat of a board book for kids who love trucks. Filled with exciting illustrations of machines at work, this latest Let's Step™ title is just right for little ones curious to find out more about what their favorite vehicles do all day. The graduated pages, lively text, and a charming cast of animal construction workers combine to make this the go-to volume for every toddler driver. Vroom, vroom!