资源介绍：
How it made造物小百科英文主题绘本12册高清PDF
这系列绘本介绍了一些常用物品的制造过程，用简单文字和精美图片，让孩子了解物品的制造过程，满足孩子的好奇心
绘本目录：
How Is a Book Made
How Is a Crayon Made
How Is a Firework Made
How Is a Pencil Made
How Is a Root Beer Made
How Is a Sweater Made
How Is Chocolate Made
How Is Cotton Candy Made
How Is Honey Made
How Is Ice cream Made
How Is Maple Syrup Made
How Is Peanut Butter Made
