内容摘要 Ms. Frizzle's classroom skeleton has broken his arm. The class was preparing for their Halloween party, but now they must take off on a spine-tingling adventure to see how a bone heals! Frizzle 老师的教室骨架断了他的胳膊。班级正在为他们的万圣节派对做准备,但现在他们必须开始一次令人脊椎发麻的冒险,看看骨头是如何愈合的!
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