Every time you put a message on the EXPORTQ queue, the number of messages on the IMPORTQ queue should increase by one.
每在exportq队列上放一条消息，importq队列上的消息数应增加一个。
Every time you put a message on the EXPORTQ queue, the number of messages on the IMPORTQ queue should increase by one.
每在exportq队列上放一条消息，importq队列上的消息数应增加一个。
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