we had a three-day vacation last week和he was the first pianist in the 70-year history of the exam
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時間：2024-08-17 10:50:20
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we had a three-day vacation last week和he was the first pianist in the 70-year history of t
【專家解說】：1. three-day 是【數(shù)詞+名詞單數(shù)】構(gòu)成的合成形容詞
2. of 表所屬關(guān)系
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