Lektionen
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DLI Global Language Online Support System
一场大火
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DLI Global Language Online Support System
海上联合军事演习
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DLI Global Language Online Support System
自然灾害
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DLI Global Language Online Support System
在书店
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DLI Global Language Online Support System
校园生活
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DLI Global Language Online Support System
考驾照
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DLI Global Language Online Support System
家乡