單字卡學習系統
| 類別 Vocabulary
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She is an expert in ancient history.
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We need to consult a financial expert.
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Please focus on your work.
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The discussion focused on environmental issues.
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The stars are clearly visible tonight.
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There has been no visible progress in the negotiations.
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It's difficult to relate the two events.
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He related his adventure in detail.
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The system can detect errors automatically.
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I detected a note of sadness in her voice.