dad名词所有格是什么

名词所有格是dad's，中文意思是爸爸的

With her dad's permission， she spent the next two years researching online and conducting trials to get a recipe that was both tasty and tooth-friendly.在她父亲的允许下，她用接下来的两年时间在网上进行调查研究，并进行实验。最后研制出既美味又不伤牙齿的食谱。