《When was it invented?》PPT课件7
《When was it invented?》PPT课件7第4页

Ⅱ. 短语互译 1. 偶然; 意外地 __________________ 2. 发生; 出现 __________________ 3. 毫无疑问 __________________ 4. 突然; 猛地 __________________ 5. fall into __________________ 6. the nature of tea __________________ 答案: 1. by accident 2. take place 3. without doubt 4. all of a sudden 5. 落入 6. 茶的性质