播放速度
例句數量
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名詞 字母D(英語字母的第四個字母) 丁等 /此名詞可為可數與不可數名詞/ /複數可為"d's"或"ds"/
縮寫 度空間 (Dimension) R&D: 研發(Research and Development)
字尾 'd: Had與Would的簡寫, I'd(I had或I would), You'd(You had或You would), He'd(He had或He would), She'd(She had或She would), They'd(They had或They would), We'd(We had或We would), It'd(It had或It would)
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