关键单词 body [ˈbɒdi] 身体 head [hɛd] 头 eyes [aɪz] 眼睛 ears [ɪərz] 耳朵 mouth [maʊθ] 嘴巴 arms [ɑːmz] 胳膊 legs [lɛɡz] 腿 heart [hɑːrt] 心脏 walk [wɔːk] 走路 run [rʌn] 跑步