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I. Conversation. Booking a tour or a flight. 對話: 訂行程或機位 II. Listening. 聽力 In flight safety information. 機上安全訊息
III. Present your conversations. 對話呈現.
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I. Conversation. Booking a tour or a flight. 對話: 訂行程或機位 II. Listening. 聽力 In flight safety information. 機上安全訊息
III. Present your conversations. 對話呈現.
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