哈尔罗杰历险记 [英] 威勒德·普赖斯.在这本书中你可锻炼自己的胆量，还可以活跃自己的思维。是一中很值得学习的“历险经验”！-Roger Hall Adventures [English] 威勒德普赖斯. In this book you can exercise your courage, but also active in their thinking. Is one well worth learning " adventure experience!"