问题
翻译题
1. be based on/upon________
2. base...on/upon...____
3. 这部电视剧是以一个真实的故事为基础的.
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4. 他把希望寄托在好消息上.
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答案
1. 以……为基础；
2. 把……建立在……基础上
3. The TV play is based on/upon a true story.
4. He based his hopes on/upon the good news.