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一位从国外归来的朋友给我讲了这么一则小故事:一天,她去一位美国老师家做客,看见老师不满3岁的孩子拿着一把钥匙,动作笨拙地插进锁中,想
One friend who came back from abroad told me a story: one day she went to visit an American teacher’s house and saw the teacher, a child under 3 years old, holding a key and clumsily inserted in the lock.