Grocery stores try to have enough employees at checkout to get all their customers through with minimum delay.
杂货店尽可能让结账台有足够的员工，以便所有顾客结账时耽误的时间最少。
The minimum delay in seconds between attempts to connect to the server, in seconds. Defaults to 5 seconds.
两次尝试连接服务器之间的最小延迟秒数。默认是5秒。
The minimum delay in seconds between attempts to connect to the server, in seconds. Defaults to 5 seconds.
两次尝试连接服务器之间的最小延迟秒数。默认是5秒。
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