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difficult是什么意思|difficult的用法|difficult的單詞速記|difficult怎么讀|difficult的考法|difficult的中文釋義|difficult的例句|dif
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deteriorate是什么意思|deteriorate的用法|deteriorate的單詞速記|deteriorate怎么讀|deteriorate的考法|deteriorate的中文釋義|dete
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turn on the light是什么意思|turn on the light的用法|turn on the light的單詞速記|turn on the light怎么讀|turn on the