People carrying luggage and paper bags wait in queue to board the train at a railway station.
人们带着行李箱和纸袋在火车站排队等待上车。
NO one had to wait too long in the queue when Spring Festival rail tickets went on sale yesterday, but many routes sold out quickly.
昨天是春运火车票开售的第一天,买票的人并未花太长时间排队等候,但不少车次的票很快就售完了。
In a blocking queue, only the reader thread needs to wait when there is no data in the queue.
对于阻塞队列,只有读线程需要在队列中没有数据时等待。
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