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discrimination是什么意思|discrimination的用法|discrimination的單詞速記|discrimination怎么讀|discrimination的考法|discri
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brightness是什么意思|brightness的用法|brightness的單詞速記|brightness怎么讀|brightness的考法|brightness的中文釋義|brightness
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difficulty是什么意思|difficulty的用法|difficulty的單詞速記|difficulty怎么讀|difficulty的考法|difficulty的中文釋義|difficulty