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一位从国外归来的朋友给我讲了这么一个小故事:一天,她去一位美国老师家做客,无意中看见老师不满3岁的孩子拿着一把钥匙,动作笨拙地试着
One friend who came back from abroad told me a story: one day she went to visit an American teacher’s house and inadvertently saw the teacher under the age of 3 holding a key and trying awkwardly