常見例句用作名詞 (n.)Raymond Chiao remembers the day, during his childhood in Shanghai, when his brother built a crystal radio set and invited him to try it.喬瑞宇還記得，小時候住在上海時，哥哥制作了一部鑛石收音機，調(diào)整好後叫他來試用看看。 返回 crystal set