dad名詞所有格是什麼

名詞所有格是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.在她父親的允許下，她用接下來的兩年時間在網上進行調查研究，並進行實驗。最後研製出既美味又不傷牙齒的食譜。