英文原文：
bob's sister isn't a student
英式音标：
bob's [ˈsɪstə] <a href="
http://www.yinbiao5.com/19-20152.html" title="isn" t'="" target="_blank" style="color: rgb(0, 70, 187); text-decoration: none; font-family: 微软雅黑; font-size: 12px; line-height: 24px; white-space: normal;">[ˈɪznt] [ə; eɪ] [ˈstjuːd(ə)nt]
美式音标：
bob's [ˈsɪstɚ] <a href="
http://www.yinbiao5.com/19-20152.html" title="isn" t'="" target="_blank" style="color: rgb(0, 70, 187); text-decoration: none; font-family: 微软雅黑; font-size: 12px; line-height: 24px; white-space: normal;">[ˈɪznt] [e] [ˈstudnt]