讲解文本：
have a weakness for 特别爱好，偏爱，对...毫无抵抗力 I have a weakness for your son. 我对你儿子毫无抵抗力。 Oh! You have a weakness for sweets, too! 哦！原来你也挡不住甜食的魅力！
疯狂练习吧！
