填空题

The central airport designated to receive a large number of flights from many location and where passengers can transfer flights to other locations is called the ______.

【参考答案】

hub

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填空题

The best thing about the cargo carriers is that it offers door-to-door delivery service to the customers.

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你的一个朋友考取研究生，向他她表示祝贺。 2．他她的成功给你的启示。 3．邀请他她来你校。