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2.2 值机流程--技能训练1You are asked to let the worker know have baggage to check in.
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The first thing you need to do is to find the terminal building for your flight.
After you get your boarding pass and check your baggage, you can board the plane.
1.5 取消机票-进阶-对话-段落翻译Jean Carver's reservation from Beijing to Dali is cancelled because she did not call Air China to confirm her reservation 24 hours before the flight departure. As a result , she has to take a next day flight.
甲苯中的甲基是邻对位定位基，然而三氟甲基苯中的三氟甲基是间位定位基，请解释。
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