1、I have a sweet tooth and can't resist eating chocolate and ice cream.
我喜歡吃甜食，見到巧克力和冰淇淋就想吃。

2、AMERICANS have a sweet tooth and odd expectations.
美國人愛吃甜食，并且有些奇怪的期待。

3、Yes, and I hope you have a sweet tooth because they're mighty sweet!
是的，我希望你愛吃甜的，因為湯圓可是會甜死人的！

have a sweet tooth翻譯